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05-30-2016, 10:15 AM   #16
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QuoteOriginally posted by fwcetus Quote
Well, I ~did~ say "SMC Takumar" 135/2.5, and I believe that "model 2" of such a critter had the same optical formula as the K...




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05-30-2016, 10:23 AM   #17
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If you can afford it, you may want to look into the samyang 135mm. I would be willing to bet it is currently the highest resolving lens available for Pentax. I had one for the D810 and it is superb. Testing shows that it is just a hair below the zeiss 135mm. Also, you dont have to mess with the green button
Of course, it goes for a little more than double in price than the K 135mm, so if the samyang is not in your budget, enjoy the K
05-30-2016, 10:23 AM   #18
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Thank you all. If I've understood right:
1 . k135 is a really good lens, also on FF , is the lens is in good conditions
2 . The price is on the high side
3. D FA 100 is obviously a macro so , passing to FF this character shines more and becomes more evident (caveat for using it as a medium tele)
4. Unclevanya says 50-135 it's better for APSC (what's designed to) - I really like this lens too and I'm tempted but it's APSC only
5. THIS PLACE IS WONDERFUL !!! I always find friendly people and good suggestions! Thank you guys!
So, my doubts are gone.... My fortune is that I can test the lens a time more in the store because the store is local and physical: if something in the lens is broken I'll do not buy the lens.

@zzeitg : Yes, I'll be in Prague this July but I suppose the lens will be gone fast soon. Before that trip I would like to take the 135 mm. It's my first time in Prague and I have high expectantions because for sure is a wonderful city with a lot of charme.

Thank you all !!!
Matteo
05-30-2016, 03:40 PM   #19
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QuoteOriginally posted by fwcetus Quote
Here's my "matched" (not) K 135/2.5's (and where the "crippled" one came from) -
I cry for the lens. I cry for all the pentax lenses that were "modified" by Canon users to remove the aperture lever.
I too want uncrippled camera so I can use M and K lenses on them and get automatic exposure. What I did was to modify the cameras, not the lens to get stop-down metering. Cameras are digital products and I will upgrade every a few years anyway, but I wish the lenses, particularly those great glasses, long long life.

05-30-2016, 06:52 PM   #20
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i'm still waiting to hear what the 50-135 lacks that the K135 would add. Me however, i dont have the 50-135, so if i want an outdoor portrait lens, or an ultra fast super tele for my Q, its the K135/2.5 where else for the size and weight can you get a FF equivalent 750/2.5 lens?

as for CA, i find it is better than the M135.3.5 that lots of people like due to its size,
05-30-2016, 07:11 PM   #21
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QuoteOriginally posted by Lowell Goudge Quote
i'm still waiting to hear what the 50-135 lacks that the K135 would add.
Size, weight and cost. And better light transmission due to simpler structure. Also keeps details in dark area better than DA 50-135. Covers FF sensor.

DA is better in color, and CA control. AF of course.

Last edited by grahame; 05-30-2016 at 08:01 PM.
05-30-2016, 07:53 PM   #22
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QuoteOriginally posted by Lowell Goudge Quote
i'm still waiting to hear what the 50-135 lacks that the K135 would add. Me however, i dont have the 50-135, so if i want an outdoor portrait lens, or an ultra fast super tele for my Q, its the K135/2.5 where else for the size and weight can you get a FF equivalent 750/2.5 lens?

as for CA, i find it is better than the M135.3.5 that lots of people like due to its size,
OP Mentioned wanting to have FF lens for future...
05-30-2016, 08:47 PM   #23
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If telephoto is your thing, ANY used Pentax K telephoto lens that is clean, has a working aperture mechanism and is inexpensive is worth the price.

05-30-2016, 10:18 PM - 1 Like   #24
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Actually DA50-135 is usable on ff at 135


taken on k1 with 50-135 at 135mm



I did a short test of the 50-135 the other day. can check out my comments here


DA lenses on K1
05-30-2016, 10:43 PM   #25
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QuoteOriginally posted by Yamakasi Quote
Actually DA50-135 is usable on ff at 135


taken on k1 with 50-135 at 135mm



I did a short test of the 50-135 the other day. can check out my comments here


DA lenses on K1
I'm glad to see that as it means not having to buy a 135 prime for a while if I ever get the k-1.
05-30-2016, 11:05 PM   #26
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QuoteOriginally posted by UncleVanya Quote
I'm glad to see that as it means not having to buy a 135 prime for a while if I ever get the k-1.

Well, just open Yamakasi's link. There's heavy vignetting at 50mm, at 90 mm and even at 115mm some vignetting is there in the corners.


But yes, at 135mm it seems to be fine.
05-30-2016, 11:16 PM   #27
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QuoteOriginally posted by zzeitg Quote
Well, just open Yamakasi's link. There's heavy vignetting at 50mm, at 90 mm and even at 115mm some vignetting is there in the corners.


But yes, at 135mm it seems to be fine.
I did. That's why I said prime, lol.
05-30-2016, 11:58 PM   #28
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QuoteOriginally posted by UncleVanya Quote
I did. That's why I said prime, lol.

This makes me sad. I love my DA* lenses (at the moment I own all of them). Seems like the primes could be usable on FF, while zooms can only be used as...primes.
05-31-2016, 01:33 AM   #29
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I have used the SMC K 135/2.5 on film, digital models from the K100d through the K3 and FF on the Sony A7r. I have enjoyed it on all three formats. I was late in getting a 50-135, and for years this lens was my concert lens, and I also used it to shoot dance performances and recreational dancing. I don't have a K1 yet, but I am happy with it on the similar sensor in the A7r.
05-31-2016, 08:39 AM - 1 Like   #30
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QuoteOriginally posted by zzeitg Quote
This makes me sad. I love my DA* lenses (at the moment I own all of them). Seems like the primes could be usable on FF, while zooms can only be used as...primes.
Pretend the K-1 is a K-5IIs with better AF and a tilting screen
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