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Minolta's achromatic coating was a double-layer coating. Double layer coatings were around since the 1950s... As for pentax's 7 layer SMC process or Fuji "11 layer" process, in truth many of the "multicoated lenses" may even have single-layer coatings in one or more surfaces. Coating many...

Superia 800 was excellent film, really really good stuff. Let's hope they package it individually and not in SUC.

I have had some 120 folder cameras: A nettar 6x6, Agfa Record III with solinar, Ensign Selfix 820. The only one to give me really sharp results is the one I kept: The Zenobia Folder with Neo-Hesper lens. Probably due to this camera having actual film rails, and the smaller 6x4.5 negative.

I had exactly the same problem. I collimated my lens as well. It only gave sharp results at about f16, but f8 or f5.6? no... only sharp center, the rest was poor.

LOL!! This is worth of a thread on its own. I once used a 212K. It surprised me the pretty good clarity of the viewfinder, and AFAIK the viewfinder had more coverage than a typical Zenit 122.

For me this was the main thing against most Zenit cameras. My first camera was a Zenit and I could immediately notice the big difference between what I framed vs what ended up on the final print.

And if had it been a Hasselblad, you'd be an integral, ultimate dork.

The A-1 is ideally used on auto mode. It has an exposure compensation dial and an exposure lock, to help with auto mode. I seldom used the A-1 in manual mode.

Yes you are correct. I have been looking at my samples closely and it definitely has some surfaces that at least have a double coating (for example, the front surface)

This!!

Pentax SMC. But "super multicoating" is a marketing gimmick. On the early '70s modern photography made flare tests of several lenses and the EBC Fujinons weren't better performers than the SMC Takumars. And the 50/1.8 Canon FD, which in theory is a single-coated lens, was better performing than...

Clearly, NO, because it has a vertical shutter.

Pentax has a complete m42 lens system capable of full aperture metering. And two wonderful cameras for it: Spotmatic F, and the ES II.

How about some WD40? but in any case, i'd also try using a hairdryer to heat it and then try unscrewing.

Lol... I only buy from japanese eBay sellers... unless the item, unfortunately, is only found somewhere else.

X2

There are currently seven 200/2.5 available on ebay too.

I routinely buy canon FD, nikkors, and Pentax lenses on eBay and i have no problem getting Pentax lenses. 35/2 is not a rare lens. Pentax 24/2 FA* is a rare lens, but currently there are 8 samples for sale on eBay. Yes of course there will be more listings for nikkor lenses, I agree. But the...

I don't understand your reasoning. Pentax sold more cameras than Nikon and Canon combined. Surely there should be as many Pentax lenses out there. And then the MX can use M42 lenses too, which are over a thousand in variety.

The 50/2 is pretty good once stopped down, and has nice bokeh. Moreover it is the 50 that best balances with the MX. I have: M 20/4 A 28/2.8 M 40/2.8 A 50/1.4 M 50/1.7 K 105/2.8 Then i have some M42 lenses including some famed stuff like the Carl Zeiss Jena 35/2.4, a very nice lens

No it is not, and i have found way too many FM and Fe bodies with issues on the secondhand market. As per the shutter, please read Les Sarile's reply.

As i mentioned before, maybe more exotic lenses in Nikon mount, but if you want the traditional, useful lenses, Pentax got you covered. Plus you can use M42 lenses, something that Nikon cameras can't do (unless putting an adapter that causes optical degradation). So the gamut of lenses is: M42...

Well Nikon has very few 35/2 lenses: The Nikkor-O lens [1965] formula was used all through their 60s and 70s and 80s... the mount was updated, the lens multicoated, but basically it stayed the same lens. And then you have the inferior 35/2 AF. So in total: Two designs [2]. With Pentax you...

The edge by which measure? The MX is a far superior camera by almost every measure. It is better built, better finished, and it has a mirror and shutter action which is FAR smoother than the one on the FM/FE. And it has a better reliability record. Ah, also the viewfinder --- much better in...

For me it was the Spotmatic F. I had a Fujica ST605n which had a better meter, but the execution was poor, in particular the shutter and mirror action was rough. I consider the Spotmatics' viefinders very good. Yes, they are dimmer than average, but they make confirming precise focus very...

Demand rose a lot in the last 3 or 2 years. I've had many people calling me looking for a RB67. I since sold one of my two bodies and several lenses. Kept one RB with 50. 65, and 180 lenses.

PS: This is what vivitar said on their maketing (source: printed ad for the 35-85): So, american lens designers were doing work commissioned by the NASA (correct), and some of those same designers (well, one) "modified these lens designs" (here the marketing BS begins) ...

This is not correct. The story is well explained here: https://blog.camera-wiki.org/2012/03/13/vivitar-historical-research-part-1/ In short: Ellis Betensky, optical designer, worked in Perkin Elmer which is a government contractor for optical systems for the NASA. Elis Betensky approached...

This is a very interesting point, because, contrary to popular belief, computers were used for optical design since the late 1950s, even in Japan. But there is a big difference between having only ONE computer available for the whole company vs more than one computer. And of course, on-site vs...

Good point sir, and thanks for the link.