Info! - Pentax Camera Calibrations with 3rd Party Lenses

cputeq · 06-20-2008, 04:44 PM

Maybe informational post for some people

and then I just talk later on in post

-------------------------

So I call Pentax today to get information on camera calibrations. First, let me say they are awesome. They literaly picked up the phone on the second ring. And the voice was human. Wow.

Anyway: I told the guy my story -- I have a K200D that seems to be front focusing with various lenses (see this forum or SLR lenses forum about Tamron 28-75mm). For info: My camera, in various degrees, has front focused with AL II kit, Tamron 70-300, two copies of Tamron 28-75mm.

He tells me what I've sorta read before but never from official sources:
-------------------------------------

Quote:

Pentax cannot calibrate cameras on 3rd party lenses. Their connection and lens specifics are unknown, and the camera cannot identify 3rd party lenses to save the calibration in the first place.

Overall the guy was very helpful and double-checked to see if it was possible, but unfortunately one cannot sent a non-adjustable camera (AKA a non-K20D camera) to Pentax with a third party lens for calibration

I also asked about K20D in-camera -- He said that yes, it should work with 3rd party, but you may have to manually type in a description of the lens (since camera cannot auto identify), then select this lens when you place it on the camera to enact the focus adjustments. Any owner confirm this operation with 3rd party lens?

Sorry if this has been posted, but good information!

--------------------------
--------------------------

Now that that's settled -- I'm going to upgrade to K20D! I like my K200D (even with the FF problem), but I'm yearning for "more". More everything.

I'm about to sell my truck and hopefully get $1900 U.S.

I plan on :

K20D - $989 after rebate
DA* 50-135 - $650 after rebate (portraits, event photography, walk around)
DA 55-300 - $349 (Minor birding, animals)
------------------------------
$1988 after rebates.

It's a shame Pentax doesn't have a longer zoom in the $700 range...I would return my Tamron 28-75mm to Amazon and combine that cash with the 55-300 money for a longer / faster telephoto zoom.

I think I'm going to refund the Tamron anyway and get the DA 16-45mm, as with the Tamron I have too much overlap with the 50-135 and the 16-45 lets me go wide...plus, I will have all Pentax glass! I think I get a cookie for that!

Really like this Tamron, though, and highly recommended.

Sound like a plan? Would anyone do different, considering my situation?

flyer · 06-20-2008, 05:21 PM

I can only confirm that the K20D/K10D don't recognize third party lenses. The EXIF doesn't show a lens name/description, only focal length. I didn't have to adjust my lenses for FF/BF, so I can't say how it works with third party lenses.

Moo · 06-20-2008, 06:53 PM

The reason the EXIF-decoding software doesn't correctly display the name/description for third-party lenses is due to it only having Pentax-made lenses in its list.
I've never seen a K20D so I don't know anything about the calibration on that.. but if it can display lens names, it too probably only has the Pentax names in its list.

**Michaelina2** · 06-20-2008, 07:03 PM

WOW... you're going for a do-over...? T-O-T-A-L-L-Y

If I could have a K100D - K20D 'perfect world' do over'...

I'd pair my rough and tumble K100D with a DA 40 Limited, the DA 55-300, and a decent PP/Pano software package, then STOP...! 95% of my bases will be covered. The 55-300 provides great reach and with the DA 40, I have two killer walk-around lenses. In fact, while I find the 55-300's IQ marvelous, the DA 40's IQ is so good on the K100D, it almost brings tears to my eyes.

As my interests, budget and Pentax lens designs evolve, I would consider adding a K20/30?/40?D (or whatever), the DA 21 Limited and FA 50/1.4, plus the DA 35 Limited Macro (perhaps) and DA 70 Limited (maybe).

Don't get me wrong... I LOVE my K20D. It's a thoroughbred that levitates above awesome... a authentic and genuine keeper. When paired with the 40 and 55-300, it DOES bring tears to my eyes.

Anyway, back to reality... I'm a just your typical curious garden variety photo hobby-ist. I have no aspirations to be a professional "pho-tog". As things stand now, a simple set-up consisting of a K100D, DA 40 Ltd and DA 55-300 combo would keep this puppy happy for many many years. (IMHO)

Your needs may differ, so ....nuff said...

cputeq · 06-20-2008, 08:08 PM

*sigh* Darn you Michaelina2 for throwing a wrench into my well-laid plans!

Thanks for the input -- i'm certainly thinking things through as we speak. It's both daunting and fun thinking things through...so many options!

ckanthon · 06-20-2008, 08:22 PM

Originally posted by cputeq

*sigh* Darn you Michaelina2 for throwing a wrench into my well-laid plans!

Thanks for the input -- i'm certainly thinking things through as we speak. It's both daunting and fun thinking things through...so many options!

Hi Cputeq,

I would suggest you can bring the K200d "kit" (or body + any Pentax lens) for a fine-tune first. Afterwards, the preformance for other third party lenses could also be better!!

Other, my bother just help me to submit my K200d Kit to the repair centre in Kowloon (Far away from my home and work place). They suggested a "general check". I told my brother that they must write down "FF", Actually finally they mentioned on the receipt "focus not standard"

WBR Anthon

RiceHigh · 06-20-2008, 09:27 PM

Originally posted by cputeq

I also asked about K20D in-camera -- He said that yes, it should work with 3rd party, but you may have to manually type in a description of the lens (since camera cannot auto identify), then select this lens when you place it on the camera to enact the focus adjustments. Any owner confirm this operation with 3rd party lens?

His claimed statement does not make sense to me at all. How can any K20D user to "manually type the description of a lens" *at* the camera. Does he think that our cameras are PDAs or notebooks? ;-)

cputeq · 06-20-2008, 09:35 PM

"Type" probably not the best word, and he didn't use that, he said "enter"

I got lazy and typed "type"

Perhaps to use the scroll wheels to enter text for description or select numbers? no idea if/how this works.

Peacekeeper · 06-20-2008, 11:31 PM

Your original question regarding the K20D and 3rd party lenses, .....yes....The camera recognises them as individual lenses and you can FF/BF adjust and save each 3rd party lens the same as the Pentax ones.

Having said that, I find the K20D sees both my 10-20mm Sigma and my 17-70mm Sigma as the same lens, all the other Sigmas I have successfully registered seperately and recognised when attached.

PK

pentkon52 · 06-21-2008, 08:27 AM

When i started dealing with Pentax Canada about my focus issues, they said to send in
the offending lens, and NO third party ones, they would not even look at them.

My Sigma 300 F4, shows up on exif as a FA 300 Pentax lens,

Dave

mithrandir · 06-21-2008, 09:42 AM

Both my Sigma 28-70mm and Tamron 75-300mm lenses are recognized by my K10D. Both are correctly identified in PhotoMe as to lens and focal length etc.

brr · 06-21-2008, 12:26 PM

But how to adjust lens correction in k20d? I have a Sigma 18-50 ( don`t have any problems with ff and bf, but i wanted to check this option). I checkek manual, but didn`t find any inormation about it.

falconeye · 06-21-2008, 04:06 PM

Originally posted by Peacekeeper

Having said that, I find the K20D sees both my 10-20mm Sigma and my 17-70mm Sigma as the same lens

Each lens has a lens ID. Unfortunately, 3rd party lens IDs aren't unique. To clarify things as much as possible, let me provide the full list as known today:

Quote:

'0 0' = M-42 or No Lens
'1 0' = K,M Lens
'2 0' = A Series Lens
'3 0' = SIGMA
'3 17' = smc PENTAX-FA SOFT 85mm F2.8
'3 18' = smc PENTAX-F 1.7X AF ADAPTER
'3 19' = smc PENTAX-F 24-50mm F4
'3 20' = smc PENTAX-F 35-80mm F4-5.6
'3 21' = smc PENTAX-F 80-200mm F4.7-5.6
'3 22' = smc PENTAX-F FISH-EYE 17-28mm F3.5-4.5
'3 23' = smc PENTAX-F 100-300mm F4.5-5.6
'3 24' = smc PENTAX-F 35-135mm F3.5-4.5
'3 25' = smc PENTAX-F 35-105mm F4-5.6 or SIGMA or Tokina
'3 26' = smc PENTAX-F* 250-600mm F5.6 ED[IF]
'3 27' = smc PENTAX-F 28-80mm F3.5-4.5
'3 28' = smc PENTAX-F 35-70mm F3.5-4.5
'3 29' = PENTAX-F 28-80mm F3.5-4.5 or SIGMA AF 18-125mm F3.5-5.6 DC
'3 30' = PENTAX-F 70-200mm F4-5.6
'3 31' = smc PENTAX-F 70-210mm F4-5.6
'3 32' = smc PENTAX-F 50mm F1.4
'3 33' = smc PENTAX-F 50mm F1.7
'3 34' = smc PENTAX-F 135mm F2.8 [IF]
'3 35' = smc PENTAX-F 28mm F2.8
'3 36' = SIGMA 20mm F1.8 EX DG ASPHERICAL RF
'3 38' = smc PENTAX-F* 300mm F4.5 ED[IF]
'3 39' = smc PENTAX-F* 600mm F4 ED[IF]
'3 40' = smc PENTAX-F MACRO 100mm F2.8
'3 41' = smc PENTAX-F MACRO 50mm F2.8 or Sigma 50mm F2,8 MACRO
'3 44' = Tamron 35-90mm F4 AF or various SIGMA models
'3 46' = SIGMA APO 70-200mm F2.8 EX or EX APO 100-300mm F4 IF
'3 50' = smc PENTAX-FA 28-70mm F4 AL
'3 51' = SIGMA 28mm F1.8 EX DG ASPHERICAL MACRO
'3 52' = smc PENTAX-FA 28-200mm F3.8-5.6 AL[IF]
'3 53' = smc PENTAX-FA 28-80mm F3.5-5.6 AL
'3 247' = smc PENTAX-DA FISH-EYE 10-17mm F3.5-4.5 ED[IF]
'3 248' = smc PENTAX-DA 12-24mm F4 ED AL[IF]
'3 250' = smc PENTAX-DA 50-200mm F4-5.6 ED
'3 251' = smc PENTAX-DA 40mm F2.8 Limited
'3 252' = smc PENTAX-DA 18-55mm F3.5-5.6 AL
'3 253' = smc PENTAX-DA 14mm F2.8 ED[IF]
'3 254' = smc PENTAX-DA 16-45mm F4 ED AL
'3 255' = SIGMA
'4 1' = smc PENTAX-FA SOFT 28mm F2.8
'4 2' = smc PENTAX-FA 80-320mm F4.5-5.6
'4 3' = smc PENTAX-FA 43mm F1.9 Limited
'4 6' = smc PENTAX-FA 35-80mm F4-5.6
'4 12' = smc PENTAX-FA 50mm F1.4
'4 15' = smc PENTAX-FA 28-105mm F4-5.6 [IF]
'4 16' = TAMRON AF 80-210mm F4-5.6 (178D)
'4 19' = TAMRON SP AF 90mm F2.8 (172E)
'4 20' = smc PENTAX-FA 28-80mm F3.5-5.6
'4 21' = Cosina AF 100-300mm F5.6-6.7
'4 22' = TOKINA 28-80mm F3.5-5.6
'4 23' = smc PENTAX-FA 20-35mm F4 AL
'4 24' = smc PENTAX-FA 77mm F1.8 Limited
'4 25' = TAMRON SP AF 14mm F2.8
'4 26' = smc PENTAX-FA MACRO 100mm F3.5
'4 27' = TAMRON AF28-300mm F/3.5-6.3 LD Aspherical[IF] MACRO (185D/285D)
'4 28' = smc PENTAX-FA 35mm F2 AL
'4 29' = TAMRON AF 28-200mm F/3.8-5.6 LD Super II MACRO (371D)
'4 34' = smc PENTAX-FA 24-90mm F3.5-4.5 AL[IF]
'4 35' = smc PENTAX-FA 100-300mm F4.7-5.8
'4 36' = TAMRON AF70-300mm F/4-5.6 LD MACRO
'4 37' = TAMRON SP AF 24-135mm F3.5-5.6 AD AL (190D)
'4 38' = smc PENTAX-FA 28-105mm F3.2-4.5 AL[IF]
'4 39' = smc PENTAX-FA 31mm F1.8AL Limited
'4 41' = TAMRON AF 28-200mm Super Zoom F3.8-5.6 Aspherical XR [IF] MACRO (A03)
'4 43' = smc PENTAX-FA 28-90mm F3.5-5.6
'4 44' = smc PENTAX-FA J 75-300mm F4.5-5.8 AL
'4 45' = TAMRON 28-300mm F3.5-6.3 Ultra zoom XR
'4 46' = smc PENTAX-FA J 28-80mm F3.5-5.6 AL
'4 47' = smc PENTAX-FA J 18-35mm F4-5.6 AL
'4 49' = TAMRON SP AF 28-75mm F2.8 XR Di (A09)
'4 51' = smc PENTAX-D FA 50mm F2.8 MACRO
'4 52' = smc PENTAX-D FA 100mm F2.8 MACRO
'4 230' = Tamron SP AF 17-50mm F/2.8 XR Di II
'4 243' = smc PENTAX-DA 70mm F2.4 Limited
'4 244' = smc PENTAX-DA 21mm F3.2 AL Limited
'4 245' = Schneider D-XENON 50-200mm
'4 246' = Schneider D-XENON 18-55mm
'4 247' = smc PENTAX-DA FISH-EYE 10-17mm F3.5-4.5 ED[IF]
'4 248' = smc PENTAX-DA 12-24mm F4 ED AL [IF]
'4 249' = TAMRON XR DiII 18-200mm F3.5-6.3 (A14)
'4 250' = smc PENTAX-DA 50-200mm F4-5.6 ED
'4 251' = smc PENTAX-DA 40mm F2.8 Limited
'4 252' = smc PENTAX-DA 18-55mm F3.5-5.6 AL
'4 253' = smc PENTAX-DA 14mm F2.8 ED[IF]
'4 254' = smc PENTAX-DA 16-45mm F4 ED AL
'5 1' = smc PENTAX-FA* 24mm F2 AL[IF]
'5 2' = smc PENTAX-FA 28mm F2.8 AL
'5 3' = smc PENTAX-FA 50mm F1.7
'5 4' = smc PENTAX-FA 50mm F1.4
'5 5' = smc PENTAX-FA* 600mm F4 ED[IF]
'5 6' = smc PENTAX-FA* 300mm F4.5 ED[IF]
'5 7' = smc PENTAX-FA 135mm F2.8 [IF]
'5 8' = smc PENTAX-FA MACRO 50mm F2.8
'5 9' = smc PENTAX-FA MACRO 100mm F2.8
'5 10' = smc PENTAX-FA* 85mm F1.4 [IF]
'5 11' = smc PENTAX-FA* 200mm F2.8 ED[IF]
'5 12' = smc PENTAX-FA 28-80mm F3.5-4.7
'5 13' = smc PENTAX-FA 70-200mm F4-5.6
'5 14' = smc PENTAX-FA* 250-600mm F5.6 ED[IF]
'5 15' = smc PENTAX-FA 28-105mm F4-5.6
'5 16' = smc PENTAX-FA 100-300mm F4.5-5.6
'6 1' = smc PENTAX-FA* 85mm F1.4 [IF]
'6 2' = smc PENTAX-FA* 200mm F2.8 ED[IF]
'6 3' = smc PENTAX-FA* 300mm F2.8 ED[IF]
'6 4' = smc PENTAX-FA* 28-70mm F2.8 AL
'6 5' = smc PENTAX-FA* 80-200mm F2.8 ED[IF]
'6 6' = smc PENTAX-FA* 28-70mm F2.8 AL
'6 7' = smc PENTAX-FA* 80-200mm F2.8 ED[IF]
'6 8' = smc PENTAX-FA 28-70mm F4AL
'6 9' = smc PENTAX-FA 20mm F2.8
'6 10' = smc PENTAX-FA* 400mm F5.6 ED[IF]
'6 13' = smc PENTAX-FA* 400mm F5.6 ED[IF]
'6 14' = smc PENTAX-FA* MACRO 200mm F4 ED[IF]
'7 0' = smc PENTAX-DA 21mm F3.2 AL Limited
'7 229' = smc PENTAX-DA 18-55mm F3.5-5.6 AL II
'7 230' = Tamron AF 17-50mm F2.8 XR Di-II LD (Model A16)
'7 231' = smc PENTAX-DA 18-250mm F3.5-6.3 ED AL [IF]
'7 233' = smc PENTAX-DA 35mm F2.8 Macro Limited
'7 234' = smc PENTAX-DA* 300mm F4 ED [IF] SDM (SDM unused)
'7 235' = smc PENTAX-DA* 200mm F2.8 ED [IF] SDM (SDM unused)
'7 236' = smc PENTAX-DA 55-300mm f/4-5.8 ED
'7 238' = TAMRON AF 18-250mm F3.5-6.3 Di II LD Aspherical [IF] MACRO
'7 241' = smc PENTAX-DA* 50-135mm F2.8 ED [IF] SDM (SDM unused)
'7 242' = smc PENTAX-DA* 16-50mm F2.8 ED AL [IF] SDM (SDM unused)
'7 243' = smc PENTAX-DA 70mm F2.4 Limited
'7 244' = smc PENTAX-DA 21mm F3.2 AL Limited
'8 234' = smc PENTAX-DA* 300mm F4 ED [IF] SDM
'8 235' = smc PENTAX-DA* 200mm F2.8 ED [IF] SDM
'8 241' = smc PENTAX-DA* 50-135mm F2.8 ED [IF] SDM
'8 242' = smc PENTAX-DA* 16-50mm F2.8 ED AL [IF] SDM

Source: Pentax Tags

Moo · 06-21-2008, 07:41 PM

So, if anyone has any lenses not in that list, try exiftool, see what it shows under "Lens Type", and post your results here.

Entropy · 06-21-2008, 10:22 PM

Originally posted by Moo

The reason the EXIF-decoding software doesn't correctly display the name/description for third-party lenses is due to it only having Pentax-made lenses in its list.
I've never seen a K20D so I don't know anything about the calibration on that.. but if it can display lens names, it too probably only has the Pentax names in its list.

I'm fairly certain that in the actual EXIF, each lens is only identified by a numeric identifier. The EXIF reader/interpreter translates this number into a lens description.

For most third-party lenses, good EXIF readers (such as Phil Harvey's definitive ExifTool) will properly identify them. There are exceptions:
Some third-party lenses share identifiers. For example, ExifTool correctly identifies my Quantaray 70-300 as a Tamron 70-300 (which is indeed what it is - Ritz Camera rebadges the Tammy as the Quantaray.) It does not correctly identify my Sigma 17-70 due to an ID collision - it IDs it as something like "Tamron (some specific lens) or multiple Sigma lenses".

So if you have multiple Sigma lenses you might have a problem of the K20D thinking they are all the same.

06-20-2008, 04:44 PM	#1
cputeq Inactive Account Join Date: Apr 2008 Posts: 464	Info! - Pentax Camera Calibrations with 3rd Party Lenses Maybe informational post for some people and then I just talk later on in post ------------------------- So I call Pentax today to get information on camera calibrations. First, let me say they are awesome. They literaly picked up the phone on the second ring. And the voice was human. Wow. Anyway: I told the guy my story -- I have a K200D that seems to be front focusing with various lenses (see this forum or SLR lenses forum about Tamron 28-75mm). For info: My camera, in various degrees, has front focused with AL II kit, Tamron 70-300, two copies of Tamron 28-75mm. He tells me what I've sorta read before but never from official sources: ------------------------------------- Quote: Pentax cannot calibrate cameras on 3rd party lenses. Their connection and lens specifics are unknown, and the camera cannot identify 3rd party lenses to save the calibration in the first place. Overall the guy was very helpful and double-checked to see if it was possible, but unfortunately one cannot sent a non-adjustable camera (AKA a non-K20D camera) to Pentax with a third party lens for calibration I also asked about K20D in-camera -- He said that yes, it should work with 3rd party, but you may have to manually type in a description of the lens (since camera cannot auto identify), then select this lens when you place it on the camera to enact the focus adjustments. Any owner confirm this operation with 3rd party lens? Sorry if this has been posted, but good information! -------------------------- -------------------------- Now that that's settled -- I'm going to upgrade to K20D! I like my K200D (even with the FF problem), but I'm yearning for "more". More everything. I'm about to sell my truck and hopefully get $1900 U.S. I plan on : K20D - $989 after rebate DA* 50-135 - $650 after rebate (portraits, event photography, walk around) DA 55-300 - $349 (Minor birding, animals) ------------------------------ $1988 after rebates. It's a shame Pentax doesn't have a longer zoom in the $700 range...I would return my Tamron 28-75mm to Amazon and combine that cash with the 55-300 money for a longer / faster telephoto zoom. I think I'm going to refund the Tamron anyway and get the DA 16-45mm, as with the Tamron I have too much overlap with the 50-135 and the 16-45 lets me go wide...plus, I will have all Pentax glass! I think I get a cookie for that! Really like this Tamron, though, and highly recommended. Sound like a plan? Would anyone do different, considering my situation?

06-20-2008, 07:03 PM	#4
Michaelina2 Site Supporter Join Date: Jan 2008 Location: SE Michigan USA Photos: Gallery Posts: 1,300	... my 25 cents... WOW... you're going for a do-over...? T-O-T-A-L-L-Y If I could have a K100D - K20D 'perfect world' do over'... I'd pair my rough and tumble K100D with a DA 40 Limited, the DA 55-300, and a decent PP/Pano software package, then STOP...! 95% of my bases will be covered. The 55-300 provides great reach and with the DA 40, I have two killer walk-around lenses. In fact, while I find the 55-300's IQ marvelous, the DA 40's IQ is so good on the K100D, it almost brings tears to my eyes. As my interests, budget and Pentax lens designs evolve, I would consider adding a K20/30?/40?D (or whatever), the DA 21 Limited and FA 50/1.4, plus the DA 35 Limited Macro (perhaps) and DA 70 Limited (maybe). Don't get me wrong... I LOVE my K20D. It's a thoroughbred that levitates above awesome... a authentic and genuine keeper. When paired with the 40 and 55-300, it DOES bring tears to my eyes. Anyway, back to reality... I'm a just your typical curious garden variety photo hobby-ist. I have no aspirations to be a professional "pho-tog". As things stand now, a simple set-up consisting of a K100D, DA 40 Ltd and DA 55-300 combo would keep this puppy happy for many many years. (IMHO) Your needs may differ, so ....nuff said...

06-20-2008, 08:22 PM	#6
ckanthon Inactive Account Join Date: Jun 2008 Location: Hong Kong Posts: 87	Originally posted by cputeq sigh Darn you Michaelina2 for throwing a wrench into my well-laid plans! Thanks for the input -- i'm certainly thinking things through as we speak. It's both daunting and fun thinking things through...so many options! Hi Cputeq, I would suggest you can bring the K200d "kit" (or body + any Pentax lens) for a fine-tune first. Afterwards, the preformance for other third party lenses could also be better!! Other, my bother just help me to submit my K200d Kit to the repair centre in Kowloon (Far away from my home and work place). They suggested a "general check". I told my brother that they must write down "FF", Actually finally they mentioned on the receipt "focus not standard" WBR Anthon Last edited by ckanthon; 06-21-2008 at 05:41 AM.

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06-20-2008, 05:21 PM	#2
flyer Veteran Member Join Date: Jan 2008 Location: Ste-Anne des Plaines, Qc., Canada Posts: 2,013	I can only confirm that the K20D/K10D don't recognize third party lenses. The EXIF doesn't show a lens name/description, only focal length. I didn't have to adjust my lenses for FF/BF, so I can't say how it works with third party lenses.

06-20-2008, 06:53 PM	#3
Moo Senior Member Join Date: Jun 2008 Posts: 173	The reason the EXIF-decoding software doesn't correctly display the name/description for third-party lenses is due to it only having Pentax-made lenses in its list. I've never seen a K20D so I don't know anything about the calibration on that.. but if it can display lens names, it too probably only has the Pentax names in its list.

06-20-2008, 08:08 PM	#5
cputeq Inactive Account Join Date: Apr 2008 Posts: 464 Original Poster	sigh Darn you Michaelina2 for throwing a wrench into my well-laid plans! Thanks for the input -- i'm certainly thinking things through as we speak. It's both daunting and fun thinking things through...so many options!

06-20-2008, 09:27 PM	#7
RiceHigh Veteran Member Join Date: Nov 2006 Location: Hong Kong Posts: 1,934	Originally posted by cputeq I also asked about K20D in-camera -- He said that yes, it should work with 3rd party, but you may have to manually type in a description of the lens (since camera cannot auto identify), then select this lens when you place it on the camera to enact the focus adjustments. Any owner confirm this operation with 3rd party lens? His claimed statement does not make sense to me at all. How can any K20D user to "manually type the description of a lens" at the camera. Does he think that our cameras are PDAs or notebooks? ;-)

06-20-2008, 09:35 PM	#8
cputeq Inactive Account Join Date: Apr 2008 Posts: 464 Original Poster	"Type" probably not the best word, and he didn't use that, he said "enter" I got lazy and typed "type" Perhaps to use the scroll wheels to enter text for description or select numbers? no idea if/how this works.

06-20-2008, 11:31 PM	#9
Peacekeeper Senior Member Join Date: Jul 2007 Location: Back at work :( Photos: Gallery Posts: 168	Your original question regarding the K20D and 3rd party lenses, .....yes....The camera recognises them as individual lenses and you can FF/BF adjust and save each 3rd party lens the same as the Pentax ones. Having said that, I find the K20D sees both my 10-20mm Sigma and my 17-70mm Sigma as the same lens, all the other Sigmas I have successfully registered seperately and recognised when attached. PK

06-21-2008, 08:27 AM	#10
pentkon52 Veteran Member Join Date: May 2007 Location: York Region Canada Posts: 641	When i started dealing with Pentax Canada about my focus issues, they said to send in the offending lens, and NO third party ones, they would not even look at them. My Sigma 300 F4, shows up on exif as a FA 300 Pentax lens, Dave

06-21-2008, 09:42 AM	#11
mithrandir Veteran Member Join Date: Nov 2007 Location: Maryland Photos: Gallery Posts: 1,895	Both my Sigma 28-70mm and Tamron 75-300mm lenses are recognized by my K10D. Both are correctly identified in PhotoMe as to lens and focal length etc.

06-21-2008, 12:26 PM	#12
brr Junior Member Join Date: Jul 2007 Location: Latvia, Riga Posts: 28	But how to adjust lens correction in k20d? I have a Sigma 18-50 ( don`t have any problems with ff and bf, but i wanted to check this option). I checkek manual, but didn`t find any inormation about it.

06-21-2008, 04:06 PM	#13
falconeye Veteran Member Join Date: Jan 2008 Location: Munich, Alps, Germany Photos: Gallery Posts: 6,871	Originally posted by Peacekeeper Having said that, I find the K20D sees both my 10-20mm Sigma and my 17-70mm Sigma as the same lens Each lens has a lens ID. Unfortunately, 3rd party lens IDs aren't unique. To clarify things as much as possible, let me provide the full list as known today: Quote: '0 0' = M-42 or No Lens '1 0' = K,M Lens '2 0' = A Series Lens '3 0' = SIGMA '3 17' = smc PENTAX-FA SOFT 85mm F2.8 '3 18' = smc PENTAX-F 1.7X AF ADAPTER '3 19' = smc PENTAX-F 24-50mm F4 '3 20' = smc PENTAX-F 35-80mm F4-5.6 '3 21' = smc PENTAX-F 80-200mm F4.7-5.6 '3 22' = smc PENTAX-F FISH-EYE 17-28mm F3.5-4.5 '3 23' = smc PENTAX-F 100-300mm F4.5-5.6 '3 24' = smc PENTAX-F 35-135mm F3.5-4.5 '3 25' = smc PENTAX-F 35-105mm F4-5.6 or SIGMA or Tokina '3 26' = smc PENTAX-F* 250-600mm F5.6 ED[IF] '3 27' = smc PENTAX-F 28-80mm F3.5-4.5 '3 28' = smc PENTAX-F 35-70mm F3.5-4.5 '3 29' = PENTAX-F 28-80mm F3.5-4.5 or SIGMA AF 18-125mm F3.5-5.6 DC '3 30' = PENTAX-F 70-200mm F4-5.6 '3 31' = smc PENTAX-F 70-210mm F4-5.6 '3 32' = smc PENTAX-F 50mm F1.4 '3 33' = smc PENTAX-F 50mm F1.7 '3 34' = smc PENTAX-F 135mm F2.8 [IF] '3 35' = smc PENTAX-F 28mm F2.8 '3 36' = SIGMA 20mm F1.8 EX DG ASPHERICAL RF '3 38' = smc PENTAX-F* 300mm F4.5 ED[IF] '3 39' = smc PENTAX-F* 600mm F4 ED[IF] '3 40' = smc PENTAX-F MACRO 100mm F2.8 '3 41' = smc PENTAX-F MACRO 50mm F2.8 or Sigma 50mm F2,8 MACRO '3 44' = Tamron 35-90mm F4 AF or various SIGMA models '3 46' = SIGMA APO 70-200mm F2.8 EX or EX APO 100-300mm F4 IF '3 50' = smc PENTAX-FA 28-70mm F4 AL '3 51' = SIGMA 28mm F1.8 EX DG ASPHERICAL MACRO '3 52' = smc PENTAX-FA 28-200mm F3.8-5.6 AL[IF] '3 53' = smc PENTAX-FA 28-80mm F3.5-5.6 AL '3 247' = smc PENTAX-DA FISH-EYE 10-17mm F3.5-4.5 ED[IF] '3 248' = smc PENTAX-DA 12-24mm F4 ED AL[IF] '3 250' = smc PENTAX-DA 50-200mm F4-5.6 ED '3 251' = smc PENTAX-DA 40mm F2.8 Limited '3 252' = smc PENTAX-DA 18-55mm F3.5-5.6 AL '3 253' = smc PENTAX-DA 14mm F2.8 ED[IF] '3 254' = smc PENTAX-DA 16-45mm F4 ED AL '3 255' = SIGMA '4 1' = smc PENTAX-FA SOFT 28mm F2.8 '4 2' = smc PENTAX-FA 80-320mm F4.5-5.6 '4 3' = smc PENTAX-FA 43mm F1.9 Limited '4 6' = smc PENTAX-FA 35-80mm F4-5.6 '4 12' = smc PENTAX-FA 50mm F1.4 '4 15' = smc PENTAX-FA 28-105mm F4-5.6 [IF] '4 16' = TAMRON AF 80-210mm F4-5.6 (178D) '4 19' = TAMRON SP AF 90mm F2.8 (172E) '4 20' = smc PENTAX-FA 28-80mm F3.5-5.6 '4 21' = Cosina AF 100-300mm F5.6-6.7 '4 22' = TOKINA 28-80mm F3.5-5.6 '4 23' = smc PENTAX-FA 20-35mm F4 AL '4 24' = smc PENTAX-FA 77mm F1.8 Limited '4 25' = TAMRON SP AF 14mm F2.8 '4 26' = smc PENTAX-FA MACRO 100mm F3.5 '4 27' = TAMRON AF28-300mm F/3.5-6.3 LD Aspherical[IF] MACRO (185D/285D) '4 28' = smc PENTAX-FA 35mm F2 AL '4 29' = TAMRON AF 28-200mm F/3.8-5.6 LD Super II MACRO (371D) '4 34' = smc PENTAX-FA 24-90mm F3.5-4.5 AL[IF] '4 35' = smc PENTAX-FA 100-300mm F4.7-5.8 '4 36' = TAMRON AF70-300mm F/4-5.6 LD MACRO '4 37' = TAMRON SP AF 24-135mm F3.5-5.6 AD AL (190D) '4 38' = smc PENTAX-FA 28-105mm F3.2-4.5 AL[IF] '4 39' = smc PENTAX-FA 31mm F1.8AL Limited '4 41' = TAMRON AF 28-200mm Super Zoom F3.8-5.6 Aspherical XR [IF] MACRO (A03) '4 43' = smc PENTAX-FA 28-90mm F3.5-5.6 '4 44' = smc PENTAX-FA J 75-300mm F4.5-5.8 AL '4 45' = TAMRON 28-300mm F3.5-6.3 Ultra zoom XR '4 46' = smc PENTAX-FA J 28-80mm F3.5-5.6 AL '4 47' = smc PENTAX-FA J 18-35mm F4-5.6 AL '4 49' = TAMRON SP AF 28-75mm F2.8 XR Di (A09) '4 51' = smc PENTAX-D FA 50mm F2.8 MACRO '4 52' = smc PENTAX-D FA 100mm F2.8 MACRO '4 230' = Tamron SP AF 17-50mm F/2.8 XR Di II '4 243' = smc PENTAX-DA 70mm F2.4 Limited '4 244' = smc PENTAX-DA 21mm F3.2 AL Limited '4 245' = Schneider D-XENON 50-200mm '4 246' = Schneider D-XENON 18-55mm '4 247' = smc PENTAX-DA FISH-EYE 10-17mm F3.5-4.5 ED[IF] '4 248' = smc PENTAX-DA 12-24mm F4 ED AL [IF] '4 249' = TAMRON XR DiII 18-200mm F3.5-6.3 (A14) '4 250' = smc PENTAX-DA 50-200mm F4-5.6 ED '4 251' = smc PENTAX-DA 40mm F2.8 Limited '4 252' = smc PENTAX-DA 18-55mm F3.5-5.6 AL '4 253' = smc PENTAX-DA 14mm F2.8 ED[IF] '4 254' = smc PENTAX-DA 16-45mm F4 ED AL '5 1' = smc PENTAX-FA* 24mm F2 AL[IF] '5 2' = smc PENTAX-FA 28mm F2.8 AL '5 3' = smc PENTAX-FA 50mm F1.7 '5 4' = smc PENTAX-FA 50mm F1.4 '5 5' = smc PENTAX-FA* 600mm F4 ED[IF] '5 6' = smc PENTAX-FA* 300mm F4.5 ED[IF] '5 7' = smc PENTAX-FA 135mm F2.8 [IF] '5 8' = smc PENTAX-FA MACRO 50mm F2.8 '5 9' = smc PENTAX-FA MACRO 100mm F2.8 '5 10' = smc PENTAX-FA* 85mm F1.4 [IF] '5 11' = smc PENTAX-FA* 200mm F2.8 ED[IF] '5 12' = smc PENTAX-FA 28-80mm F3.5-4.7 '5 13' = smc PENTAX-FA 70-200mm F4-5.6 '5 14' = smc PENTAX-FA* 250-600mm F5.6 ED[IF] '5 15' = smc PENTAX-FA 28-105mm F4-5.6 '5 16' = smc PENTAX-FA 100-300mm F4.5-5.6 '6 1' = smc PENTAX-FA* 85mm F1.4 [IF] '6 2' = smc PENTAX-FA* 200mm F2.8 ED[IF] '6 3' = smc PENTAX-FA* 300mm F2.8 ED[IF] '6 4' = smc PENTAX-FA* 28-70mm F2.8 AL '6 5' = smc PENTAX-FA* 80-200mm F2.8 ED[IF] '6 6' = smc PENTAX-FA* 28-70mm F2.8 AL '6 7' = smc PENTAX-FA* 80-200mm F2.8 ED[IF] '6 8' = smc PENTAX-FA 28-70mm F4AL '6 9' = smc PENTAX-FA 20mm F2.8 '6 10' = smc PENTAX-FA* 400mm F5.6 ED[IF] '6 13' = smc PENTAX-FA* 400mm F5.6 ED[IF] '6 14' = smc PENTAX-FA* MACRO 200mm F4 ED[IF] '7 0' = smc PENTAX-DA 21mm F3.2 AL Limited '7 229' = smc PENTAX-DA 18-55mm F3.5-5.6 AL II '7 230' = Tamron AF 17-50mm F2.8 XR Di-II LD (Model A16) '7 231' = smc PENTAX-DA 18-250mm F3.5-6.3 ED AL [IF] '7 233' = smc PENTAX-DA 35mm F2.8 Macro Limited '7 234' = smc PENTAX-DA* 300mm F4 ED [IF] SDM (SDM unused) '7 235' = smc PENTAX-DA* 200mm F2.8 ED [IF] SDM (SDM unused) '7 236' = smc PENTAX-DA 55-300mm f/4-5.8 ED '7 238' = TAMRON AF 18-250mm F3.5-6.3 Di II LD Aspherical [IF] MACRO '7 241' = smc PENTAX-DA* 50-135mm F2.8 ED [IF] SDM (SDM unused) '7 242' = smc PENTAX-DA* 16-50mm F2.8 ED AL [IF] SDM (SDM unused) '7 243' = smc PENTAX-DA 70mm F2.4 Limited '7 244' = smc PENTAX-DA 21mm F3.2 AL Limited '8 234' = smc PENTAX-DA* 300mm F4 ED [IF] SDM '8 235' = smc PENTAX-DA* 200mm F2.8 ED [IF] SDM '8 241' = smc PENTAX-DA* 50-135mm F2.8 ED [IF] SDM '8 242' = smc PENTAX-DA* 16-50mm F2.8 ED AL [IF] SDM Source: Pentax Tags

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06-21-2008, 07:41 PM	#14
Moo Senior Member Join Date: Jun 2008 Posts: 173	So, if anyone has any lenses not in that list, try exiftool, see what it shows under "Lens Type", and post your results here.

06-21-2008, 10:22 PM	#15
Entropy Veteran Member Join Date: Jun 2007 Location: Owego, NY Posts: 976	Originally posted by Moo The reason the EXIF-decoding software doesn't correctly display the name/description for third-party lenses is due to it only having Pentax-made lenses in its list. I've never seen a K20D so I don't know anything about the calibration on that.. but if it can display lens names, it too probably only has the Pentax names in its list. I'm fairly certain that in the actual EXIF, each lens is only identified by a numeric identifier. The EXIF reader/interpreter translates this number into a lens description. For most third-party lenses, good EXIF readers (such as Phil Harvey's definitive ExifTool) will properly identify them. There are exceptions: Some third-party lenses share identifiers. For example, ExifTool correctly identifies my Quantaray 70-300 as a Tamron 70-300 (which is indeed what it is - Ritz Camera rebadges the Tammy as the Quantaray.) It does not correctly identify my Sigma 17-70 due to an ID collision - it IDs it as something like "Tamron (some specific lens) or multiple Sigma lenses". So if you have multiple Sigma lenses you might have a problem of the K20D thinking they are all the same.