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28-50mm zoom lenses
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PostPosted: Wed Mar 29, 2023 4:33 am    Post subject: Reply with quote
Yeah, cheap kitlenses have surprised me more than once.


PostPosted: Wed Mar 29, 2023 9:51 am    Post subject: Reply with quote
The Pentax-m 28-50mm F3.5-4.5 is a very sharp little gem.


PostPosted: Wed Mar 29, 2023 12:06 pm    Post subject: Reply with quote
D1N0 wrote:
The Pentax-m 28-50mm F3.5-4.5 is a very sharp little gem.


Not in the corners. I've had one sample of it and while it was very sharp near the center the corners never cleared up (on full frame, A7R and A7II). Ive rather recommend the Olympus OM S-Zuiko AUTO-Zoom 28-48mm f/4.0 or, for a wider range, the Tamron SP 24-48 mm f/3.5-3.8, both capable of sharp images throughout the frame.


PostPosted: Wed Mar 29, 2023 12:31 pm    Post subject: Reply with quote
Alsatian2017 wrote:
D1N0 wrote:
The Pentax-m 28-50mm F3.5-4.5 is a very sharp little gem.


Not in the corners. I've had one sample of it and while it was very sharp near the center the corners never cleared up (on full frame, A7R and A7II). Ive rather recommend the Olympus OM S-Zuiko AUTO-Zoom 28-48mm f/4.0 or, for a wider range, the Tamron SP 24-48 mm f/3.5-3.8, both capable of sharp images throughout the frame.


It is very compact so there are going to be some compromises. But the importance of corners is grossly overstated by people. There is border to border sharpness at F8 (and probably much sooner). Some people just think that if the corners are a little blurred that means overall lens quality is bad, despite that the lens delivers. Corner snobs that do not care about photography at all.


PostPosted: Wed Mar 29, 2023 12:52 pm    Post subject: Reply with quote
D1N0 wrote:

It is very compact so there are going to be some compromises. But the importance of corners is grossly overstated by people. There is border to border sharpness at F8 (and probably much sooner). Some people just think that if the corners are a little blurred that means overall lens quality is bad, despite that the lens delivers. Corner snobs that do not care about photography at all.


True, but if you can have sharp corners without compromising on anything else (OK, the Olympus and Tamron are slightly longer and heavier...), why should you keep up with fuzzy ones ?


PostPosted: Wed Mar 29, 2023 1:48 pm    Post subject: Reply with quote
The Pentax has better over all IQ than the Tamron and better Build quality. I do not own the Olympus since I can't adapt it to my Pentax.


PostPosted: Thu Apr 13, 2023 6:03 pm    Post subject: Reply with quote
The new Sigma 28-50 (2.8-3.5) arrived

28mm f8
The Pond 28mm F8 by The lens profile, on Flickr

35mm F8
The Pond 35mm F8 by The lens profile, on Flickr

50mm F8
The Pond 50mm F8 by The lens profile, on Flickr


PostPosted: Thu Apr 13, 2023 6:04 pm    Post subject: Reply with quote
Bokeh @50mm 3.5

Daffokeh by The lens profile, on Flickr


PostPosted: Wed Apr 19, 2023 7:14 pm    Post subject: Reply with quote
-As promised, some images with the Nikon AF 28-70mm f/3.5-4.5D. Click few times for full size.

Nikkor2870J_32 by devoscasper, on Flickr

Nikkor2870J_37 by devoscasper, on Flickr


Nikkor2870J_31 by devoscasper, on Flickr

Nikkor2870J_17 by devoscasper, on Flickr


Nikkor2870J_25 by devoscasper, on Flickr
Nikkor2870J_7 by devoscasper, on Flickr

Nikkor2870J_24 by devoscasper, on Flickr


PostPosted: Wed Apr 19, 2023 7:32 pm    Post subject: Reply with quote
Your latest series is a pure joy. Congrats!


PostPosted: Thu Apr 20, 2023 7:03 am    Post subject: Reply with quote
alex ph wrote:
Your latest series is a pure joy. Congrats!


👍👊


PostPosted: Tue Jul 25, 2023 11:55 am    Post subject: Reply with quote
Some weeks ago I got the Yashica ML 3.5/28-50mm. It's a pretty rare lens here in Switzerland, and I was happy to get it for a reasonable price (CHF 50.-- including a beatiful early SR-T101, a Rollei A26, and a huge Metz flash). The lens is quite abit better than the other 28-50mm lneses I had tested previously. It also has sharper corners than the Minolta MD 4/24-50mm which is considered to be a quite good vintage wideangle zoom.

Certainly recommended if you look for a good vintage 28-50mm zoom!

S


PostPosted: Wed Jul 26, 2023 6:47 pm    Post subject: Reply with quote
stevemark wrote:
Some weeks ago I got the Yashica ML 3.5/28-50mm. It's a pretty rare lens here in Switzerland, and I was happy to get it for a reasonable price (CHF 50.-- including a beatiful early SR-T101, a Rollei A26, and a huge Metz flash). The lens is quite abit better than the other 28-50mm lneses I had tested previously. It also has sharper corners than the Minolta MD 4/24-50mm which is considered to be a quite good vintage wideangle zoom.

Certainly recommended if you look for a good vintage 28-50mm zoom!

S


Will definitely grab one, if I find one at a reasonable price!


PostPosted: Sun Aug 20, 2023 4:59 pm    Post subject: Reply with quote
I just received a PM by casper79 regarding the YashicaML 3.5/28-50mm:

Quote:
Hi Stephan,
You have the Yashica ML 28-50/3.5, right? Just curious how you like it.



I thought the answer might be useful for others, too - and therefore I will answer here.

I got my Yashica ML 3.5/28-50mm several months ago, but since it had an "1A" filter (with fungus!) practically glued into the 72mm filter thread, I have been running just a few superficial tests - until now. Today I finally was able to remove the dirty filter glass, and to compare the Yashica ML 3.5/28-50mm to the Mamiya Sekor E 3.5-4.5/28-50mm and the Sony Zeiss ZA 2.8/24-70mm. The tests were ran using a 43 MP FF Sony A7RII. I have been looking at resolution / contrast in the infinity range at f=28mm, f=35mm and f=50mm. Apertures were f3.5 f2.Cool, f5.6 and f11.

As expected, the more modern Sony Zeiss ZA 2.8/24-70mm was better than the two vintage zooms at all focal lengths and apertures.

However, the Yashica ML was much closer to the Zeiss than to the Mamyia. The Yashica - being much larger than the Mamiya - is surprisingly good at all focal lengths and at all apertures. While at f3.5 the exteme corners are slightly weaker, at f5.6 and atf11 the entire image is surprisingly clean an clear. Some lateral CAs remain (more than with the more modern Zeiss), and the Zeiss looks crisper, but the Yashica performs really good for such an old wideangle zoom.

The Mamiya Sekor E 28-50mm is much smaller (and lighter) than the Yashica. It is as good as (or better) than the other 28-50 (28-55mm) vintage zooms I own, but there's no doubt that the Yashica 3.5/28-50mm is much better, especially in the 50mm range - period.

Sadly I never had the opportunity to test the Canon FD/nFD 3.5/28-50mm (not to be confused with the later "plastic fantastic" nFD 28-55mm) or the Nikkor AiS 4/24-50mm. They both have a good reputation and might be as good as the Yashica ML 3.5/28-50mm mentioned here!

S

Last edited by stevemark on Sun Aug 20, 2023 5:43 pm; edited 1 time in total


PostPosted: Sun Aug 20, 2023 5:22 pm    Post subject: Reply with quote
Seems to be another lens to feed my GAS 😊
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