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05-19-2019, 01:05 PM - 1 Like   #16
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QuoteOriginally posted by Ropuchy Quote
Oh, nice! Having both the 50/1.4 and 50/2.0, do you find the extra stop to be useful in low-light conditions, or does it not matter that much? I've been keeping an eye out for one in decent condition.
Yes, that extra stop makes a big difference. One can really push the envelope at f/1.4, especially on older bodies. Here is one taken by a dim streetlight, wide open at ISO 12800 on my trusty Kx. With an f/2 I would have had to haul out a tripod. A modern body like a KP would do fine with an f/2 but I don't have one (yet).


Edit: The extra brightness in the viewfinder that an extra stop gives you is very useful for framing and focusing, but I have never compered the f/1.4 and f/2.0 in that respect.


---------- Post added 2019-05-19 at 22:16 ----------

QuoteOriginally posted by Ropuchy Quote
And isn't the 30/2.8 a 'K' series lens?
Indeed it is, my bad. I also neglected to mention the M 150/3.5. There were certainly some unique focal lengths in the lineup in the Asahi days. AFAIK Canon and Nikon never offered a 120 or a 150.

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Last edited by Wasp; 05-19-2019 at 01:26 PM.
05-19-2019, 02:33 PM   #17
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QuoteOriginally posted by Wasp Quote
Yes, that extra stop makes a big difference. One can really push the envelope at f/1.4, especially on older bodies. Here is one taken by a dim streetlight, wide open at ISO 12800 on my trusty Kx. With an f/2 I would have had to haul out a tripod. A modern body like a KP would do fine with an f/2 but I don't have one (yet).


Edit: The extra brightness in the viewfinder that an extra stop gives you is very useful for framing and focusing, but I have never compered the f/1.4 and f/2.0 in that respect.


---------- Post added 2019-05-19 at 22:16 ----------



Indeed it is, my bad. I also neglected to mention the M 150/3.5. There were certainly some unique focal lengths in the lineup in the Asahi days. AFAIK Canon and Nikon never offered a 120 or a 150.
Alrighty, I'll keep looking for one then! I've got a K-5, so I could probably make due with f2 if I push the ISO up, but I like to keep it low-ish.

The KP would be a great fit for the compact M series lenses I bet!


Yeah, those less common focal lengths have some charm to them. I've been looking at the K55/1.8 for that reason, probably makes a nice portrait lens on APS-C.
12-13-2020, 06:22 PM - 1 Like   #18
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Nature shots with the Pentax-m 50 f2


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