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Forum: General Photography 01-23-2019, 08:14 PM  
What interval does a light meter read?
Posted By jamesk8752
Replies: 10
Views: 644
Camerapedia may have useful answers than Wikipedia on camera/photo questions.

Regards, Jim
Forum: Pentax Full Frame 01-14-2019, 09:52 PM  
Ricoh Japan FF Camera Market Survey
Posted By jamesk8752
Replies: 37
Views: 3,413
On second thought, Ricoh would probably not want my eyeteeth - they are too old and worn from gnashing them in frustration when I can't get one of my DSLR lenses to autofocus consistently. Oh well, there is always mirrorless...:lol:

Regards, Jim
Forum: Pentax Full Frame 01-14-2019, 03:01 PM  
Ricoh Japan FF Camera Market Survey
Posted By jamesk8752
Replies: 37
Views: 3,413
I would give my eyeteeth for an effective Auto AF fine tuning system on my next Pentax camera. Ricoh, please take heed!

Regards, Jim
Forum: Pentax DSLR Discussion 12-02-2018, 01:53 PM  
Pop up Flash
Posted By jamesk8752
Replies: 24
Views: 1,282
Another vote for the AF201 as a pocketable assistant when using my K-1 II or K3 II. It is a very useful adjunct when I am out and about but don't want to carry a large flash with me.
Forum: Sold Items 10-25-2018, 07:57 PM  
For Sale - Sold: Carl Zeiss Sonnar T* 2.8/135
Posted By jamesk8752
Replies: 5
Views: 861
PM sent - awaiting reply.

Regards, Jim
Forum: Pentax K-1 03-12-2016, 01:50 PM  
Newer Sigma lenses
Posted By jamesk8752
Replies: 35
Views: 2,791
Yup. Sigma is not in business to be a charity; they must see an economic benefit commensurate with their investment in bringing out their lenses in another mount. Maybe if the K-1 really takes off we will see some new Sigma lenses for K-mount, given the few modern FF lenses in that mount, but frankly, I'm dubious...
Forum: Pentax K-1 03-12-2016, 11:28 AM  
Newer Sigma lenses
Posted By jamesk8752
Replies: 35
Views: 2,791
The mechanical aperture coupling didn't stop Sigma, Tamron, and Tokina from offering K-mount lenses in the past. No, it has to be something else...
Forum: Pentax K-1 03-12-2016, 11:22 AM  
Poll: Have you pre ordered?
Posted By jamesk8752
Replies: 89
Views: 9,027
I'm gritting my teeth to stick to my plan to order in 4-6 months, just in case there are any issues with initial production. With all the enthusiasm I'm seeing her, it is getting harder and harder to wait...
Forum: Pentax K-1 03-12-2016, 11:19 AM  
Which lenses you're going to test on K-1 fist?
Posted By jamesk8752
Replies: 70
Views: 5,713
My three original FA Limiteds, then the DA*55, the A1.2, and the A*200/4.
Forum: Pentax SLR Lens Discussion 03-04-2016, 08:40 AM  
How many lenses do you have?
Posted By jamesk8752
Replies: 1,708
Views: 130,435
I've been collecting cameras and lenses for over 15 years now and have built up a substantial collection, much of it acquired used. Although most of my gear is Pentax, I also have Leica, Rollei, Fujica, Fujifilm, Zeiss, and other manufacturers' products gong back into the 1930s. At my last count, I have 344 lenses for Pentax in K-mount, M42-mount, and M37-mount (including 23 lenses in Adaptall-2 mount). I have another 220 lenses which are not for Pentax.

I keep most of my stuff on display in glass-encased curio cabinets so I can enjoy seeing it. Maybe I should open a museum!

You can see a list of the items in my photo gear collection here: https://www.dropbox.com/s/pzpckkyg0luk2fm/Camera%20Equipment%20Profile.doc?dl=0

Regards, Jim
Forum: Pentax SLR Lens Discussion 07-04-2015, 06:10 AM  
Unusual 55mm F2.2 M37 Lens
Posted By jamesk8752
Replies: 20
Views: 3,322
LOL! Yes, as an incurable collector I'll be back in the hunt. for sure...
Forum: Pentax SLR Lens Discussion 07-03-2015, 10:04 PM  
Unusual 55mm F2.2 M37 Lens
Posted By jamesk8752
Replies: 20
Views: 3,322
After several exchanges of emails, the Japanese seller has agreed that he made a mistake and has refunded my payment, so at least all I will be "out of pocket" is the return shipping. Too bad; I would have loved to have owned such a unique lens. The perils of being a collector... ;<((
Forum: Pentax SLR Lens Discussion 07-03-2015, 06:28 PM  
Unusual 55mm F2.2 M37 Lens
Posted By jamesk8752
Replies: 20
Views: 3,322
Today I tried mounting this lens and found to my surprise (and disappointment) that it was actually an M42 mount, not an M37 mount as the seller had (twice) stated. What an embarrassment! I should have checked it immediately after receiving it, but didn't. I've advised the seller and expect that he will either accept a return with full refund or accept a much lower price if I keep it.

My apologies to all of you who responded with your thoughts about it. I should have been more suspicious given the front bezel designation and the size of the optical unit in the rear view.

Sometimes a thing is too good to be true...
Forum: Pentax SLR Lens Discussion 07-01-2015, 06:54 PM  
Unusual 55mm F2.2 M37 Lens
Posted By jamesk8752
Replies: 20
Views: 3,322
@Fred-

My M37 -> K mount adapter looks like it was fabricated from two adapters cemented together, a chrome plated M42 ring surrounding a brass M37 ring. I found that it didn't *quite* focus to infinity (the M37 inner ring was very slightly higher than the surrounding M42 ring) so I carefully filed the inner ring down flush to the outer ring. Now it focuses slightly beyond infinity with my 83/1.9 lens, which has the shallowest DOF of the M37 lenses in my collection. The others seem to have correct infinity focus.

---------- Post added 07-01-15 at 09:11 PM ----------

@Tool_Horder-

My face is red! I thought I had a Takumar 55/2.2 in my collection but looking more carefully I find that I don't - an omission I must remedy in the near future! So I'm sorry, but I can't show the two lenses side by side as you requested.

Thanks for your comments regarding the M42 version of this lens. My M37 version also has both feet and meters on the distance scale.

Odinz' speculations about the possible fabrication of the earliest M42 lenses in both M37 and M42 mounts is interesting and fits with my thinking. Could you share the S/N of your M42 55/2.2? I wonder if it is close to 179057, the number on my lens.
Forum: Pentax SLR Lens Discussion 06-30-2015, 06:36 PM  
Unusual 55mm F2.2 M37 Lens
Posted By jamesk8752
Replies: 20
Views: 3,322
Yes, that's the lens I bought. I have also posted photos of my own in the DPR forum: Photos...: Pentax SLR Talk Forum: Digital Photography Review. The M37mount really looks original - no signs of being a modified M42 mount. Look at the quality of the engraving of the DOF scale on the mount.

I suppose I overpaid, but rarities like this have their own rules of value to collectors like me. At least it is in very nice condition! Now I have to give it a field test. Luckily I brought my M37 -> K mount adapter with me to our summer place.
Forum: Pentax SLR Lens Discussion 06-30-2015, 10:59 AM  
Unusual 55mm F2.2 M37 Lens
Posted By jamesk8752
Replies: 20
Views: 3,322
As most of you long time Pentaxians know, I have built a large collection of (mainly) Pentax lenses, from the earliest Takumar M37 lenses for the Asahiflex series through the latest DA lenses for K-mount bodies. My current lens count for various Pentax mounts is 318.

I recently came across (bought on eBay from a Japanese seller, actually) an M37 lens which seems unique. It is the Takumar 55mm f2.2 lens, which was introduced in 1957 in the M42 mount along with the original Pentax bodies which introduced that mount. It was Asahi Optical Co.'s first use of the double Gauss lens design, and was the fastest normal lens available from AOCo when it was introduced.

I can find no mention in the literature of this lens having ever been made in M37 mount, but I'm holding one in my hand as I write this. It bears serial number 179057. The preset aperture mount looks the same as my M42 copy of this lens except that it has an M37 thread. The mount shows no sign of having been cut down from an M42 mount version, and it has all the original DOF markings intact. I suspect that it could be a prototype made at the very end of the Asahiflex era to evaluate the new lens design before the Pentax bodies were introduced, but of course I have no way of proving this.

I'd like to ask of you who are into Pentax esoterica and history to tell me anything you might know about this lens. To reach a broader audience I'm also posting this message in the DPR Pentax SLR forum. Thanks in advance for any light you can shed on the history of this lens!

Regards, Jim
Forum: Pentax SLR Lens Discussion 02-02-2015, 10:04 PM  
How many lenses do you have?
Posted By jamesk8752
Replies: 1,708
Views: 130,435
At last count, I had 542 lenses in my collection. Of these, 349 lenses are in Pentax M37, M39, and K mounts. Of course, some are duplicates mounted on the Pentax cameras in my collection which are on display. I must have about 50 "normal" lenses (43-58mm)...

The perils of being a collector!

Regards, Jim
Forum: Pentax Price Watch 08-15-2014, 08:14 AM  
Extra B&H Photo savings on K-3 + AF-540 FGZ Flash
Posted By jamesk8752
Replies: 5
Views: 3,006
You won't be disappointed - the K-3 is a heck of a camera, everything I want in a DSLR. Now Pentax needs to bring out some fast primes!
Forum: Sold Items 05-20-2014, 05:16 PM  
For Sale - Sold: Pentax DA 20-40m Ltd
Posted By jamesk8752
Replies: 1
Views: 863
PM sent.

Regards, Jim
Forum: Sold Items 01-07-2014, 05:55 PM  
For Sale - Sold: DA 18-135mm WR (MINT Condition)
Posted By jamesk8752
Replies: 4
Views: 657
You've got a deal - see my PM reply. Thanks!
Forum: Sold Items 01-07-2014, 03:55 PM  
For Sale - Sold: DA 18-135mm WR (MINT Condition)
Posted By jamesk8752
Replies: 4
Views: 657
PM sent.

Regards, Jim
Forum: General Talk 12-25-2013, 03:13 PM  
What did you get for Christmas?
Posted By jamesk8752
Replies: 194
Views: 15,491
Santa was VERY good to me. I received a K-3 and two Sony 32 GB 95bps memory cards!
Forum: General Talk 12-25-2013, 03:12 PM  
What did you get for Christmas?
Posted By jamesk8752
Replies: 194
Views: 15,491
My haircut gal gave me one of these too! As I don't drink coffee mine will adorn a bookshelf...

Regards, Jim
Forum: Sold Items 03-02-2013, 06:05 PM  
For Sale - Sold: DA-L 18-55mm zoom lens - US$35
Posted By jamesk8752
Replies: 8
Views: 1,651
PM sent.

Regards, Jim
Forum: Pentax Q 07-18-2012, 08:00 PM  
Noise on LCD
Posted By jamesk8752
Replies: 4
Views: 1,071
Thnaks, guys. I knew that someone in this forum would have the answer.

Snostorm has it right; it's a byproduct of having the "Bright/Dark Area" setting checked. If this setting is turned off, no yellow noise pulses are visible. All in all, I think I can do without this indicator for most of my shooting, as I mainly use the histogram in image review.

Interesting that my K-7 and K-5 do not show this behavior...

Regards, Jim
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