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05-10-2016, 02:47 AM   #136
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QuoteOriginally posted by theEight Quote
Just tried my Tamron SP AF 17-50mm f/2.8 XR Di II LD, bit surprised to discover that lens was meant for APS-C to begin with.
Shouldn't have been, theEight.

That's what the Di II means for a Tamron lens - APS-C.

Sigma's code is DC.





05-10-2016, 03:45 AM   #137
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Sent my 70-200mm HSM II to Sigma UK yesterday. Hoping a lens firmware update resolves my issues.
05-10-2016, 04:17 AM   #138
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QuoteOriginally posted by Papa Lazarou Quote
Sent my 70-200mm HSM II to Sigma UK yesterday. Hoping a lens firmware update resolves my issues.
In Australia the national Sigma distributor is also the long term Pentax distributor. If any Aussies have any K-1 and Sigma problems, hopefully that will make any necessary fixes easier to arrange.
05-10-2016, 04:53 AM   #139
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I have the older Sigma 70-200 F2.8 APO DG EX - works perfectly with the K1 and my k5 II. It is very fast focusing on both cameras although no HSM. It has very good user reviews and might be an option for those wanting this zoom range and aperture. It's a bit cheaper too if you can find one on the second hand market.


Last edited by aju3169; 05-10-2016 at 05:01 AM. Reason: Mistake
05-10-2016, 04:53 AM   #140
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QuoteOriginally posted by funktionsfrei Quote
The lens I've described makes the camera freeze immediately upon being attached. So it can be used as a rather heavy body cap only.

Oh, and yes, it's a "8 255" lens. Exiftool (and Lightoom) correctly identifies it as "Sigma 70-200mm F2.8 EX DG Macro HSM II".


I'm trying to get in contact with Sigma on that.


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

Hi, according to your lens review it seems you have the lens with the oldest firmware as you mentioned problems with K5 live view focusing. I've updated lens FW five years ago as these HSM II lenses did nothing in live-viev on my K5. It only went forward, backward without lock. After firmware update it works as any other lens in live view.

This probably is the problem you have.. and now K-1 maybe uses the same shorter steps like LV on K5, to the lens has problems.

---------- Post added 10-05-16 at 02:05 PM ----------

QuoteOriginally posted by aju3169 Quote
I have the older Sigma 70-200 F2.8 APO DG EX - works perfectly with the K1 and my k5 II. It is very fast focusing on both cameras so I assume it has HSM - although I can't verify. It has very good user reviews and might be an option for those wanting this zoom range and aperture. It's a bit cheaper too!

Sigma 70-200 EX DG HSM II is this one: https://www.pentaxforums.com/forums/attachments/36-sold-items/255150d14216609...m-k_3s2837.jpg


There are only three sigma 70-200 lenses (!)

Old body-driven 70-200/2.8 APO EX

Upgraded 70-200/2.8 EX APO DG HSM II

And then completely new stabilised 70-200/2.8 EX DG OS
05-10-2016, 10:05 AM   #141
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QuoteOriginally posted by aju3169 Quote
I have the older Sigma 70-200 F2.8 APO DG EX - works perfectly with the K1 and my k5 II. It is very fast focusing on both cameras although no HSM. It has very good user reviews and might be an option for those wanting this zoom range and aperture. It's a bit cheaper too if you can find one on the second hand market.
I have the original versions, pre-DG, both the 70-200/2.8 and 100-300/4 and the matching EX 1.4x and EX 2x tele-converters. All work well on the K-1. The auto-focus speed on the 70-200 was very surprising, (very, very fast). Auto-focus speed on the 100-300 was "normal".
05-10-2016, 02:44 PM   #142
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From the info I collected in various places, I think that there are two versions of the body-driven lens: the "DG" which appeared in 2005, and an older version from 1999 which is not DG.
None of those is MACRO (they have minimal focus distance 1.8m) whereas the HSM version (appeared in 2008, also known as version II) is MACRO (minimal focus distance 1m).
The body-driven and the HSM variants have 18 elements in 15 groups, and the OS variant has 22 elements in 17 groups (and a minimal focus distance of 1.4m).

QuoteOriginally posted by xmeda Quote
---------------

There are only three sigma 70-200 lenses (!)

Old body-driven 70-200/2.8 APO EX

Upgraded 70-200/2.8 EX APO DG HSM II

And then completely new stabilised 70-200/2.8 EX DG OS
05-11-2016, 01:56 AM   #143
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I've received information from Sigma's central service in Germany that they are still in the process of collecting all the information about the K-1 in order to issue a firmware update for the HSM II lens. The information was received via Sigma's service centre in Croatia.

05-11-2016, 03:35 AM   #144
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https://www.pentaxforums.com/forums/190-pentax-k-1/320805-sigma-announcement-...ens-issue.html
05-11-2016, 05:48 AM   #145
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Anyone want to buy a 70-200 HSM II?
05-11-2016, 07:38 AM   #146
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QuoteOriginally posted by funktionsfrei Quote
That's a real good question, that even transcends the barriers between different language (in German that would be a "Drittanbieter").
Dunno.
1 OEM = first party
2 User = 2nd party
3 anyone else 3rd party

---------- Post added 11-05-16 at 03:44 PM ----------

QuoteOriginally posted by xmeda Quote
---------------

Hi, according to your lens review it seems you have the lens with the oldest firmware as you mentioned problems with K5 live view focusing. I've updated lens FW five years ago as these HSM II lenses did nothing in live-viev on my K5. It only went forward, backward without lock. After firmware update it works as any other lens in live view.

This probably is the problem you have.. and now K-1 maybe uses the same shorter steps like LV on K5, to the lens has problems.

---------- Post added 10-05-16 at 02:05 PM ----------




Sigma 70-200 EX DG HSM II is this one: https://www.pentaxforums.com/forums/attachments/36-sold-items/255150d14216609...m-k_3s2837.jpg


There are only three sigma 70-200 lenses (!)

Old body-driven 70-200/2.8 APO EX

Upgraded 70-200/2.8 EX APO DG HSM II

And then completely new stabilised 70-200/2.8 EX DG OS
There are many variants your last covers two

70-200/2.8 EX DG OS HSM (supposed to have mount issues on K-1)
70-200/2.8 APO EX DG OS (the last 70-200 in production not mentioned as having issues )

Giving
1 70-200/2.8 APO EX
2 70-200/2.8 APO EX DG
3 70-200/2.8 APO EX DG Macro (released as Macro HSM in all mounts but PKA)
4 70-200/2.8 EX APO DG HSM II
5 70-200/2.8 EX DG OS HSM
6 70-200/2.8 APO EX DG OS

I may be wrong on the last two as it may be box Vs lens nomenclature

Last edited by awaldram; 05-11-2016 at 07:53 AM.
05-11-2016, 09:53 AM   #147
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QuoteOriginally posted by awaldram Quote
Giving
1 70-200/2.8 APO EX
2 70-200/2.8 APO EX DG
3 70-200/2.8 APO EX DG Macro (released as Macro HSM in all mounts but PKA)
4 70-200/2.8 EX APO DG HSM II
5 70-200/2.8 EX DG OS HSM
6 70-200/2.8 APO EX DG OS

I may be wrong on the last two as it may be box Vs lens nomenclature
I am pretty sure that there has been only one OS version, produced from 2010 to 2014.

When was the Macro and not HSM version released?

Do you have more information on each of these lenses? For example, the OS and HSM II versions don't have an aperture ring, the non-macro versions have an aperture ring.
05-11-2016, 12:08 PM   #148
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QuoteOriginally posted by felixkh Quote
I have an older Sigma 70-200/2.8 APO EX DG which works fine with my K1. This is the non macro with an aperture ring version.
that's good to know....just in case I get a K-1
05-11-2016, 01:57 PM   #149
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Probably not related to the issues discussed on this thread since Sigma is offering a firmware fix to the users who have inquired.


Steve
05-11-2016, 06:47 PM   #150
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Sigma 70-200 F2.8 APO EX - completely K1 compatible.

QuoteOriginally posted by aju3169 Quote
I have the older Sigma 70-200 F2.8 APO DG EX - works perfectly with the K1 and my k5 II. It is very fast focusing on both cameras although no HSM. It has very good user reviews and might be an option for those wanting this zoom range and aperture. It's a bit cheaper too if you can find one on the second hand market.
Correction: Actually have the oldest version, i.e., Sigma 70-200 F2.8 APO EX (not DG). As already mentioned - it works perfectly with K1 and suprisingly very fast AF speed given it is a screwdrive. NO scratching of K1 body - the mount flange outer diameter is 60.0mm. I heard the the HSM version was measured to 63.5mm - hence the problem with body scratching.

---------- Post added 05-12-16 at 12:04 PM ----------

I have been testing my Pentax DA 1.4X AW rear converter http://https://www.pentaxforums.com/lensreviews/hd-pentax-da-14x-aw-rear-converter.html. All my tests have shown that it is full frame compatible with the K1 although the camera will set it to crop mode if set to auto crop so you will need to set crop mode to FF. These are the list of FF lenses that I have tested it with:

PRIMES:
Vivitar 13/2.8,
FA 20/2.8,
Tamron adaptall-2 28/2.5 PKA,
FA 31/1.8,
SMC DA 35/2.8 macro,
HD DA 40/2.8,
FA 43/1.9,
A50/1.2,
A50/2.0,
FA 50/1.4,
DFA 50/2.8 macro,
FA 77/1.8,
DFA 100/2.8 macro WR,
Vivitar series 1 A105/2.5 macro.

Zooms:
Sigma 70-200/2.8 APO EX,
F 35-70/3.5-4.5,
FA 24-90/3.5-4.5,
F 35-80/4-5.6,
Sigma 28-80/3.5-5.6,

NOTE: the SMC DA 35/2.8 macro is FF compatible (not sure on the edge focus) - just don't fully extend the built-in adjustable hood to avoid vignetting.
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