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10-06-2019, 12:51 PM   #7426
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QuoteOriginally posted by pres589 Quote
What's not to like about a good 28?? Which version of that lens do you have, the mk1 or the mk2? mk2 doesn't have the usual chrome ring around the lens filter threads and is sort of a cross between an M and an A series lens in that regard.
I have the mk1 - with the chrome ring. I bought it for my ME Super but I do not shoot on film that much, so it didn't see much use. After some time I decided to give it a try on my K-50 and now I've been using it in the Single-In challenge. So as I said, I like it more and more, which doesn't mean I didn't like it initially Apart from IQ I like built quality - like all the M-series lenses.

10-07-2019, 03:20 AM - 2 Likes   #7427
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October Single In Challenge 2019 with K1ii & M100/4

7th

Perspective theme

I didn't quite grasp the theme. With UWA it would have been easy to go after good lines, but with tele... Well, here's my interpretation.

K1ii M100/4 ISO100 f5.6 1/250:


Mainly cloudy or rain in the forecast. This might turn out to be a long month.
10-07-2019, 03:36 AM   #7428
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QuoteOriginally posted by Chris_K Quote
I have the mk1 - with the chrome ring. I bought it for my ME Super but I do not shoot on film that much, so it didn't see much use. After some time I decided to give it a try on my K-50 and now I've been using it in the Single-In challenge. So as I said, I like it more and more, which doesn't mean I didn't like it initially Apart from IQ I like built quality - like all the M-series lenses.
I use my M28/2.8 almost only wide-open (it is really good at infinity) or at f11, where it seems to have its sweet-spot at least on older APS-C cameras.
10-08-2019, 01:38 AM - 5 Likes   #7429
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M 100/4 Macro from the moving boat (Lake Garda)

10-08-2019, 02:27 AM - 4 Likes   #7430
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QuoteOriginally posted by Piotrek K Quote
I use my M28/2.8 almost only wide-open (it is really good at infinity) or at f11, where it seems to have its sweet-spot at least on older APS-C cameras.
That's an interesting approach. This lens is definitely usable wide open, I need to use it more like that.

And speaking of M-28/2.8 - here is a shot from today, at f/4. The second frosty night this autumn.

10-08-2019, 03:09 AM   #7431
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QuoteOriginally posted by Piotrek K Quote
I use my M28/2.8 almost only wide-open (it is really good at infinity) or at f11, where it seems to have its sweet-spot at least on older APS-C cameras.
I believe I use it mainly at f8.
10-08-2019, 03:17 AM   #7432
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QuoteOriginally posted by iheiramo Quote
I believe I use it mainly at f8.
F11 as a sweet-spot was claimed here on the forums. My very limited tests confirmed it for a tripod use with lower MP-count APS-C bodies (landscape with foreground in fact).

10-08-2019, 03:56 AM - 6 Likes   #7433
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SMC-M 135mm f/3.5 & K-70.
10-08-2019, 04:05 AM - 1 Like   #7434
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QuoteOriginally posted by Piotrek K Quote
F11 as a sweet-spot was claimed here on the forums. My very limited tests confirmed it for a tripod use with lower MP-count APS-C bodies (landscape with foreground in fact).
Interesting. On my experience the sweet spot on M series primes is usually f8, but according to this it is f11 with M28/2.8 mk1. Didn't notice it when I shot a SIC month with it on APSC, but have pay more attention to it on FF round.
10-08-2019, 04:13 AM - 6 Likes   #7435
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October Single In Challenge 2019 with K1ii & M100/4

8th

Exceptionally calm day. Went to shoot close ups in the harbor on a lunch brake, but ended up shooting landscapes due to nice mirror surface.

K1ii M100/4 ISO100 f8 1/500 panorama from 10 shots:


And as a second:

10-08-2019, 05:09 AM   #7436
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QuoteOriginally posted by iheiramo Quote
Interesting. On my experience the sweet spot on M series primes is usually f8, but according to this it is f11 with M28/2.8 mk1. Didn't notice it when I shot a SIC month with it on APSC, but have pay more attention to it on FF round.
I had a feeling that it improves clarity and colors also, but I cannot say I checked this really throughly.
10-08-2019, 05:17 AM   #7437
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I don't know if it makes a lot of sense to say "The M-Series really performs best at f8" like a blanket statement. Where did the K's perform best, f5.6? You get what I mean. Best example of a breaker of this rule that I know of personally is the M 50 1.7; that lens does not need to be stopped down to f8 to perform best and might actually perform better at f5.6, center vs. edges.

I do think it's a pretty easy blanket statement to make, something along the lines of "older lenses have image quality that cleans up nicely by f8 which also makes focusing easier to get 'close enough' when shooting them at f8".
10-08-2019, 05:27 AM   #7438
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QuoteOriginally posted by pres589 Quote
I don't know if it makes a lot of sense to say "The M-Series really performs best at f8" like a blanket statement. Where did the K's perform best, f5.6? You get what I mean. Best example of a breaker of this rule that I know of personally is the M 50 1.7; that lens does not need to be stopped down to f8 to perform best and might actually perform better at f5.6, center vs. edges.

I do think it's a pretty easy blanket statement to make, something along the lines of "older lenses have image quality that cleans up nicely by f8 which also makes focusing easier to get 'close enough' when shooting them at f8".
A good point well made. I think that it'd also be valuable in saying that 'trying M-series at f/8 gives a decent IQ across the range'. In that, there might be a better 'sweet spot', but that typically it would yield very useable results.
Insofar as 'trying M-series wide open gives decent IQ across the range' would probably not be valuable.

Last edited by Benz3ne; 10-08-2019 at 05:33 AM.
10-08-2019, 05:56 AM - 1 Like   #7439
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QuoteOriginally posted by pres589 Quote
I don't know if it makes a lot of sense to say "The M-Series really performs best at f8" like a blanket statement. Where did the K's perform best, f5.6? You get what I mean. Best example of a breaker of this rule that I know of personally is the M 50 1.7; that lens does not need to be stopped down to f8 to perform best and might actually perform better at f5.6, center vs. edges.

I do think it's a pretty easy blanket statement to make, something along the lines of "older lenses have image quality that cleans up nicely by f8 which also makes focusing easier to get 'close enough' when shooting them at f8".
That's why I used term, usually, in my sentence. I do like to use my M50/1.7 between f4 and f5.6 and even wide open, but according to same source it, indeed, is sharpest at f8.
I have no experience to comment behaviour of other series, but with M stopping down does make them sharper. Of course there are other values than sharpness in photography. Since getting K1ii I've shot quite a lot wide open with my M's, as with FF the results are sharp enough.
10-08-2019, 06:13 AM   #7440
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QuoteOriginally posted by iheiramo Quote
That's why I used term, usually, in my sentence. I do like to use my M50/1.7 between f4 and f5.6 and even wide open, but according to same source it, indeed, is sharpest at f8.
Agreed, but with my A-50/1.7. Heck, it's even nice around f/2.8.
Same goes for the M-50/1.4. It's wonderfully sharp at f/2.8 and /4 is tack-sharp. Of course, this continues through /5.6 and towards /8.
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