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Pentacon 29mm v Vario-Sonnar 35-70mm
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PostPosted: Wed Jul 11, 2012 10:16 pm    Post subject: Pentacon 29mm v Vario-Sonnar 35-70mm Reply with quote
Just a couple of quick snaps I took to compare a £30.00 lens to a £300.00 lens on my Canon EOS 5D, both at around f/4:

Pentacon



CZ



Pentacon - 100% crop



CZ - 100% crop



Pentacon - 100% crop



CZ - 100% crop



My Pentacon 29/2.8 is what I would class as a sharp copy. I think if I was just printing reasonable size photos, I wouldn't care too much, but anything bigger and the sharpness of the Zeiss is more noticable IMO.


PostPosted: Wed Jul 11, 2012 10:44 pm    Post subject: Reply with quote
Difference is not too much I will be happy if I have Pentacon only thank you for your time and share results!


PostPosted: Wed Jul 11, 2012 10:44 pm    Post subject: Reply with quote
Interesting...any reason why f4 as in the UK ATM light in sunshine @ 200asa/iso is usually 1/250 @f5.6, f8 or even f11 (appx reflection from Kodak grey)


PostPosted: Wed Jul 11, 2012 10:53 pm    Post subject: Reply with quote
A kind of funny comparison. I like it Smile! It's only when looking at crop one notice the difference.


PostPosted: Wed Jul 11, 2012 10:53 pm    Post subject: Reply with quote
Excalibur wrote:
Interesting...any reason why f4 as in the UK ATM light in sunshine @ 200asa/iso is usually 1/250 @f5.6, f8 or even f11 (appx reflection from Kodak grey)


Perhaps because at F8-F11 almost any lens good.


PostPosted: Wed Jul 11, 2012 10:54 pm    Post subject: Reply with quote
Excalibur wrote:
Interesting...any reason why f4 as in the UK ATM light in sunshine is usually 1/250 @f5.6, f8 or even f11 (appx reflection from Kodak grey)


Yep, I was in a rush as we didn't see much sun that day Laughing Looking at the EXIF, it looks like the zoom was stopped down one stop more and the original VS shot was overexposed by around a stop, which may account for some of the difference.

Therefore, I reckon the Pentacon was actually at f/4 and the zoom at f/5.6.


PostPosted: Wed Jul 11, 2012 11:32 pm    Post subject: Reply with quote
Nice comparison, I expected it would be fairly close with the V-S winning.

If you have one, try the Pentacon PB 2.8/28 against the V-S, I find that's a better lens than either the 2.8/29 Pentacon or the 3.5/30 Pentacon.


PostPosted: Wed Jul 11, 2012 11:35 pm    Post subject: Reply with quote
While the performance of the Pentacon in this case looks remarkable, I think the difference is enough to classify one as a very-good-for-the-price prime lens and the other as a top notch zoom.
I'm not looking them on my usual monitor, so I may be wrong, but that's my impression.

Surely I remember my Pentacon 29 looking worse than this when I used it.


PostPosted: Wed Jul 11, 2012 11:41 pm    Post subject: Reply with quote
Aanything wrote:
While the performance of the Pentacon in this case looks remarkable, I think the difference is enough to classify one as a very-good-for-the-price prime lens and the other as a top notch zoom.
I'm not looking them on my usual monitor, so I may be wrong, but that's my impression.

Surely I remember my Pentacon 29 looking worse than this when I used it.


I agree.

Pentacon 29s very a lot, I have a earlier Meyer one and it was great but had weak edges wide open. Other copies I've seen were not as good, but a good copy is a fine lens.


PostPosted: Thu Jul 12, 2012 7:44 am    Post subject: Reply with quote
Damn, those sheeps crop is so nice with Sonar
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