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10-04-2013, 08:03 AM   #16
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along with the comparison to the K200/4 (or SMC Tak 200/4 which is the same and which I own). I would love to see it against 2 other lenses that I also own, the tak 200/3.5 preset, and the Series 1 70-210/3.5 (version 1)

My own experience suggests that both these lenses are better than the SMC tak / K 200F4.

10-04-2013, 09:17 AM   #17
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Thanks for the comparison! Back in the film days, I used to want one of the Vivitar 200mm f3.0 lenses because I couldn't afford the Pentax 200 f2.8 A* at the time. I was using the Pentax M 200 f4 and longed for something faster. I eventually found the faster Pentax 200 for a great price, but I had always wondered how the Vivitar would have done.
10-05-2013, 04:08 PM   #18
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Hi,

I'm sorry for the delay, here's the new scene:


(shot with the Pentax at f/8)


The full images are on Flickr:
http://www.flickr.com/photos/kaktuskontrafaktus/sets/72157636254686683/

The crops are on Picsurge:
http://picsurge.com/99tFCX


UPDATE:
I unthinkingly leveled the images in Lightroom, I've replaced them with unleveled ones (doesn't seem to make much difference, though).


[B]
Vivitar 200mm f/3 (left) -vs- Pentax-M 200mm (right):

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


f/3:



f/4:



f/4.8:



f/5.6:



f/6.7



f/8:



f/9.5:



f/11:



f/13:



f/16



f/22:



- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


f/3:



f/4:



f/4.8:



f/5.6:



f/6.7



f/8:



f/9.5:



f/11:



f/13:



f/16



f/22:



- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


f/3:



f/4:



f/4.8:



f/5.6:



f/6.7



f/8:



f/9.5:



f/11:



f/13:



f/16



f/22:



- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -




regards
Jan

Last edited by Boris_Akunin; 10-06-2013 at 09:54 AM.
10-07-2013, 05:43 AM   #19
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Hi,

I've added a set of newclose-up shots, these should be more informative than the first batch.
I took several minutes to get the focus as good as I could, if there's still a difference it's probably because the Vivitar has a longer focus throw.
If that gives it a slight advantage, it deserves it...


(shot with the Vivitar at f/8)

The full images are on Flickr:
CLOSE: Pentax-M 200/4 -vs- Vivitar 200/3 - a set on Flickr

The crops are on Picsurge:
picsurge.com - CLOSE: Pen 200/4 vs Viv 200/3

Vivitar 200mm f/3 (left) -vs- Pentax-M 200mm (right):
100% crops, no sharpening or other PP
Focus distance: ~2.7m

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


f/3:



f/4:



f/4.8:



f/5.6:



f/6.7:



f/8:



f/9.5:



f/11:



f/13:



f/16:



- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


f/3:



f/4:



f/4.8:



f/5.6:



f/6.7:



f/8:



f/9.5:



f/11:



f/13:



f/16:



10-07-2013, 07:24 AM   #20
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One think that you might consider is that lenses have different behavior on different distances. This is inherent.

In this batch, Vivitar looks to be a clear winner, but I think that are photo made inside, at a small distance. And you might think at the main purpose you will use that lens.

As we say in astronomy, there is no perfect telescope, only best telescope for specific observations.
10-07-2013, 08:13 AM   #21
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QuoteOriginally posted by JimmyDranox Quote
One think that you might consider is that lenses have different behavior on different distances. This is inherent.
The Vivitars floating element is doing it's job, it seems.

QuoteQuote:
In this batch, Vivitar looks to be a clear winner, but I think that are photo made inside, at a small distance. And you might think at the main purpose you will use that lens.
The Vivitar's definitely the better choice for indoor work and the shorter min. focus distance (1.2m vs 2m) makes it more useful indoors anyway. It' uncoated though, the VMC version might by acceptable but the Pentax is very likely better in backlit situations. For outdoor use, the Pentax probably wins.

I'd guess that my Vivitar 135/2.3 would look quite similar when compared to any of the Pentax 135s (K/M135/3.5, K135/2.5), I will post the same close-up scene shot with the 135/2.3 soon.


In practice those large pre-A lenses are too much of a hastle to use for my taste, the coming DA55-300WR or the DFA100/2.8WR would probably suit my needs better.
The Vivitars do command rather hefty prices, after all...


regards
Jan
10-07-2013, 01:30 PM   #22
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Wow, that Vivitar has some crazy PF in the outdoor shots. Different than the PF I'm used to. Almost like a halo around certain objects...
10-07-2013, 01:59 PM   #23
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QuoteOriginally posted by thornburg Quote
Wow, that Vivitar has some crazy PF in the outdoor shots. Different than the PF I'm used to. Almost like a halo around certain objects...
I think you are looking at the Pentax

10-07-2013, 07:21 PM   #24
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QuoteOriginally posted by Lowell Goudge Quote
I think you are looking at the Pentax
No, since the shots I'm looking at include f/3...

It's not normal PF. Might not even count as PF. But if you look at the "subject" of each of the outdoor shots at open apertures--less than f/8--you can see a discoloration that looks a bit like a purple-ish shadow of the subject.

Right now, the pictures won't load for me, so it's hard for me to point out exactly what I mean, but that's what I was referring to earlier, when I could see the pictures.
10-08-2013, 12:20 AM - 1 Like   #25
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QuoteOriginally posted by Lowell Goudge Quote
My own experience suggests that both these lenses are better than the SMC tak / K 200F4.
I don't want to hijack the thread but none of my two copies of the K200/4 shows such high PF as that one I can see on these published shots.

But I'm not saying that K series tele are perfect. For example I get PF on the K300/4, while a much humbler Vivitar 300/5.6 has almost none at the price of less sharpness.
10-10-2013, 09:14 PM   #26
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The Vivitar is now for sale, if anyone's interested.

Last edited by Boris_Akunin; 10-21-2013 at 04:33 PM.
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