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05-10-2014, 03:26 AM   #16
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Curious, I looked over at fleabay for Canon 135mm f2 FD - almost went thru the floor - asking $400 or so for an FD lens? Maybe I'm looking at the wrong lens?

Guess if you really need f2.0 it may be justified - but I think the SMCT M42 43812 135 f2.5 is usually half that or less.. Still think a case can be made that the 'best bang for the buck' is the SMCT 135 f3.5 stopped down a bit, or the Vivitar Komine M42 135 f2.8 early (8 blade) 5-element. Would love to see this last lens on your lamp shot...

My SMCT 135 f3.5 is in my Q bag. Light. Easy to handhold. Just need to remember to stop it down a bit...My 135 f2.5 43812 is in the K-01 bag. I got it in the '70's - way before the Komine. If I did not have it, I probably would not buy it, not for $200 anyway, and the mint $40 Vivitar Komine would be in there instead.

05-11-2014, 06:22 AM   #17
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QuoteOriginally posted by cahudson42 Quote
Curious, I looked over at fleabay for Canon 135mm f2 FD - almost went thru the floor - asking $400 or so for an FD lens? Maybe I'm looking at the wrong lens?

Guess if you really need f2.0 it may be justified - but I think the SMCT M42 43812 135 f2.5 is usually half that or less.. Still think a case can be made that the 'best bang for the buck' is the SMCT 135 f3.5 stopped down a bit, or the Vivitar Komine M42 135 f2.8 early (8 blade) 5-element. Would love to see this last lens on your lamp shot...

My SMCT 135 f3.5 is in my Q bag. Light. Easy to handhold. Just need to remember to stop it down a bit...My 135 f2.5 43812 is in the K-01 bag. I got it in the '70's - way before the Komine. If I did not have it, I probably would not buy it, not for $200 anyway, and the mint $40 Vivitar Komine would be in there instead.

Good points.

I made a rather similar reply here:
https://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/261292-supe...ml#post2810489


Different price, size, weight and the FD can't even be used on a Pentax camera.
For the guy with a Pentax, the 135/2.5 will be one of the best viable options.
Thats different from the guy with a MILC that can adapt lenses, in which case, perhaps a legendary Nikkor 105/2.5 or Leica R Summicron 90/2 is a viable an alternative as any other too.
05-14-2014, 10:38 AM - 1 Like   #18
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QuoteOriginally posted by cahudson42 Quote
Curious, I looked over at fleabay for Canon 135mm f2 FD - almost went thru the floor - asking $400 or so for an FD lens? Maybe I'm looking at the wrong lens?
Fast glasses are expensive, even in "dead" mounts like the Canon FD.
Before the release of good 4/3 cameras they were cheaper. Now you can adapt them to many cameras with a simple, very cheap, adapter ring.
There are so many wonderful optical designs in Canon FD, Olympus OM, Konica, Minolta MD. Then some really nice movie zooms and primes in C and D mounts...
I'm happy they're getting a new lease of life. It made me sad to see them relegated to film cameras, or just collector's items.
A 135mm with max aperture of f/1.8 or f/2 is VERY fast. Wide-open soft-ish rendition was a forced design choice, without ED glasses it's quite complicate to have a razor sharp tele at max aperture.
Probably 400 USD for the Canon f/2 isn't exactly cheap, but you must remember that prices are a RELATIVE, not an ABSOLUTE value.
I have seen Porst 135mm f/1.8 lenses being sold for at least two thirds that money, and it's just a Tomioka made lens with no special allure, which just happens to be usable (WITH SR) with modern Pentax DSLR bodies. Super fast lenses allow to take a kind of pictures which can't be shot with slower objectives. Period.
I did my one and only crazy purchase, buying a super fast prime. After waiting forever for a decently priced Pentax-A 50mm f/1.2, i gave up all of a sudden, and purchased a Revuenon 50mm f/1.2 (which doesn't even have electric contacts!.. something i promised i'd never do again ), spending 250 euros + shipment! It's just a fast-but-no-frills lens, originally manufactured by Cosina.
Amateurs (and often even professionals) spend good money in special tools, whatever the field of their interests.

QuoteQuote:
Guess if you really need f2.0 it may be justified - but I think the SMCT M42 43812 135 f2.5 is usually half that or less.. Still think a case can be made that the 'best bang for the buck' is the SMCT 135 f3.5 stopped down a bit, or the Vivitar Komine M42 135 f2.8 early (8 blade) 5-element.
Resolution/contrast wide open, size/bulk, and price vs performance are NOT the only ways to define the value, and the worthiness, of a lens.
Fast lenses allow to take shots which can't be made with a slower lens, just because they are... faster!
Hence they allow for selective focusing, with reduced depth of focus. Often they also offer a kind of "optical signature", which can't be faked either.
Many fast lenses made in the sixties/seventies were designed that way, with slightly under-corrected spherical aberration.
You can't compare crash resistance between a Ferrari and a pickup.
Simply the Ferrari was made with other qualities in mind, and people who spend crazy money for a Ferrari know all too well about that

Last edited by cyberjunkie; 05-14-2014 at 10:44 AM.
05-14-2014, 10:04 PM   #19
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QuoteOriginally posted by cahudson42 Quote
Curious, I looked over at fleabay for Canon 135mm f2 FD - almost went thru the floor - asking $400 or so for an FD lens? Maybe I'm looking at the wrong lens?

Guess if you really need f2.0 it may be justified - but I think the SMCT M42 43812 135 f2.5 is usually half that or less.. Still think a case can be made that the 'best bang for the buck' is the SMCT 135 f3.5 stopped down a bit, or the Vivitar Komine M42 135 f2.8 early (8 blade) 5-element. Would love to see this last lens on your lamp shot...

My SMCT 135 f3.5 is in my Q bag. Light. Easy to handhold. Just need to remember to stop it down a bit...My 135 f2.5 43812 is in the K-01 bag. I got it in the '70's - way before the Komine. If I did not have it, I probably would not buy it, not for $200 anyway, and the mint $40 Vivitar Komine would be in there instead.
I had Vivitar Komine f2.8 and SOLD it, not sure which version of it. It was a sharp lens but only when stopped down a bit, so I doubt if it will compare favorably to either 50-135 or FD135.

On FD, if you need f2.0, you just need it, can't replace it with f3.5 stopped down a bit. I like my f3.5 but remains unused all the time. Agree that it can't be fitted on Pentax but that's not a point.

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