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12-29-2017, 04:43 AM   #1
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Manual focus 135mm f3.5

OK, I have gone nuts buying lenses since I got my K30 in October. I have primes and zooms and wanted your opinion as to whether I should add this lens to my collection.
The old MF Pentax 135mm f3.5 is £35 from a shop so it will be in good condition but I don't know if I will use it. I have a K30 apsc. I like photographing landscapes, woodlands and old buildings both inside and out where light can be an issue. The lenses I have that cover that length are
Pentax SMC da 50-200 f4-5.6,
a Pentax 100-300 f4.7-5.8 and
a sigma slidey manual 75-300 f4.5-5.6 (which was free )
I also have my kit 18-55
A Miranda 24mm f2.8
SMC da 35mm f2.4
Ashai Pentax 50mm f2

See, nuts!

So, will this lenses enhance my collection or do I need some form of therapy?

Thanks in advance

12-29-2017, 04:56 AM - 1 Like   #2
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You have early stage LBA for which unfortunately there is no cure.

The smc-M 135mm 3.5 was a very popular lens in the 1980's. it was part of many folk's kit. It is not regarded as a stellar lens, but it is in my opinion a very good one. It is plenty sharp, has a reasonable wide aperture (wider than what you have at that FL), is a great compact size and a very nice smooth focussing action (as all K and M series lenses do). Because it was an affordable lens of it's time there are plenty about and so the prices are reasonable.

I bought mine nearly 40 years ago and it still gets the occasional outing on my camera. I say go ahead and get it.
12-29-2017, 06:02 AM - 1 Like   #3
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There are lots of good 135mm out there, I'm sure the pentax f3.5's are among them, along with the CZJ's, Jupiters, Tairs etc. But IMO 90mm is more useful field of view on apsc (= 135mm on full frame). Allow double the money (typical £) for a tamron adaptall 90mm macro.
12-29-2017, 06:16 AM   #4
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Aaaaaargh, now I am even more conflicted lolol thanks guys. The 90mm is a nice idea and deserves investigation but I am leaning towards getting the 135mm partly because it is so cheap, I could always resell and not lose anything, and partly because I havenít bought a lens for ooooh, minutes! I will let you know when I buy it .........erm, I meant when I decide :0)

12-29-2017, 06:35 AM - 2 Likes   #5
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buy it, shoot with it for a while, and then decide if you like it - if not, sell it....

if your LBA is anything like mine, once you latch on to an idea/focal length/lens, you'll keep it in the back of your mind until you satisfy it...

I went through two different 135mm lenses before deciding that I didn't care that much about the focal length... and moved on from it...


just as an aside, one of the things that was a tremendous help with my LBA was (is) the Single In Challenge - shoot with a single lens every day for a month...

believe me, at the end of a month, you'll know if you want to keep it or not...
12-29-2017, 07:09 AM   #6
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Nice idea. I will probably pick up the 135mm if it is still there tomorrow then I will give that a go. I want to get my head round what each lens can do and that sounds perfect.
12-29-2017, 07:13 AM   #7
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Everybody should own a good 135mm prime.
And that Tak qualifies.
12-29-2017, 07:13 AM - 1 Like   #8
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Buy it. My LBA has led to a collection of over 30 lenses. I have several 135mm lenses, and that is one of my favorite. While I preferred 135 on film, it has a place on apsc. Also, I think you’ll find it may be better than your current lenses at 135.

If you don’t care for it, you won’t be out anything selling it. When you get it, do the Single in challenge, it’ll tell you if it’s a lens worth keeping or even if it’s a focal length you’ll ever use.

12-29-2017, 07:20 AM - 1 Like   #9
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QuoteOriginally posted by twilhelm Quote
My LBA has led to a collection of over 30 lenses
I see you have not got full-blown LBA just yet then, but you are close
12-29-2017, 07:24 AM - 2 Likes   #10
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You don't specify which one it is.
If it's a SMC Pentax or Pentax-M I'd go for it, if I were in your place.
If it's an old Takumar in M42 screw mount I'd wait. It would be the only one you have, and using the adapter could not be as practical, and for sure would slow you down in the field.
All of them are good to very good. I owned the M in film time and I enjoyed it
It's small and has a built in sliding hood.

Cheers

Paolo

12-29-2017, 07:29 AM   #11
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Absolutely go ahead and get the 135mm, Pentax-M also did a nice zoom 70-150mm which I feel is as good as my copy of the -M 135mm.
I was using my 135mm for Robins in the garden as they are quite tame and a 135mm was often enough....but the 200mm was better.
12-29-2017, 07:29 AM   #12
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QuoteOriginally posted by cyberjunkie Quote
You don't specify which one it is.
If it's a SMC Pentax or Pentax-M I'd go for it, if I were in your place.
If it's an old Takumar in M42 screw mount I'd wait. It would be the only one you have, and using the adapter could not be as practical, and for sure would slow you down in the field.
All of them are good to very good. I owned the M in film time and I enjoyed it
It's small and has a built in sliding hood.

Cheers

Paolo
I am pretty sure it is the M
12-29-2017, 08:23 AM - 1 Like   #13
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135mm eh? Don't read this if you don't want to complicate your LBA.

I had a Tamron 135mm for my old screw mount Pentax and loved it. It was fast, sharp, and had a great bokeh. When I got my K-1, I tried finding a K mount for it (it was the adaptamatic or adaptall type - never understood which is which) but came across the same lens in K mount on ebay. Fits great and works well. Very sharp wide open (which is a plus since I wanted it for astro photography).

I think this one on ebay is about the same. I got mine for $35 mint so you might be able to make an offer. Sorry to feed your LBA dilemma but f2.8 is a bonus in a 135mm if you can get it.

Tamron 135mm F2.8 BBAR MC Auto MF for Pentax K [5302768] | eBay

or there's the "Sears" version of it ($34US): https://www.ebay.com/itm/Sears-135mm-F2-8-for-Pentax-K-Mount-Cameras-Nice/29...8#ht_112wt_814

or the Chinon: https://www.ebay.com/itm/Chinon-Super-Chinar-135mm-F2-8-Pentax-K-Prime-Lens-....c100005.m1851

which is reviewed here: https://www.pentaxforums.com/userreviews/tamron-adaptall-135mm-f-2-8-ct-135.html

Last edited by Bob 256; 12-29-2017 at 08:41 AM.
12-29-2017, 08:26 AM   #14
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QuoteOriginally posted by pschlute Quote
You have early stage LBA for which unfortunately there is no cure.
Yes. Amen
12-29-2017, 08:44 AM   #15
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QuoteOriginally posted by bob 256 Quote
135mm eh? Don't read this if you don't want to complicate your lba.

I had a tamron 135mm for my old screw mount pentax and loved it. It was fast, sharp, and had a great bokeh. When i got my k-1, i tried finding a k mount for it (it was the adaptamatic or adaptall type - never understood which is which) but came across the same lens in k mount on ebay. Fits great and works well. Very sharp wide open (which is a plus since i wanted it for astro photography).

I think this one on ebay is about the same. I got mine for $35 mint so you might be able to make an offer. Sorry to feed your lba dilemma but f2.8 is a bonus in a 135mm if you can get it.

tamron 135mm f2.8 bbar mc auto mf for pentax k [5302768] | ebay

or there's the "sears" version of it ($34us): Sears 135mm F2.8 for Pentax K Mount Cameras~ Nice!! | eBay

or the chinon: Chinon Super Chinar 135mm F2.8 Pentax K Prime Lens SLR/Mirrorless Cameras *READ* | eBay

which is reviewed here: Tamron Adaptall ( Chinon ) 135mm f/2.8 (CT 135) Lens Reviews - Tamron Adaptall Lenses - Pentax Lens Review Database
aaaaaaargh

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