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06-13-2008, 04:41 PM   #1
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135mm lense

Hello everyone, I am looking for a 135mm k/mount f/2.8 or f/2.5 that is auto focus for my sons basketball games this winter. Any idea of where I could find one?

Thanks again
Jim

06-13-2008, 05:32 PM   #2
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eBay? Craigslist?

I don't know if any third party companies made 135mm AF primes for K mount, so as far as I know, you're limited to the F and FA 135 f/2.8. If you're looking for a prime.

What's your budget? Maybe the DA* 50-135 or Tamron 70-200 f/2.8 would work for you.
06-13-2008, 06:22 PM   #3
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I have been watching ebay (lots of manual focus lenses) and craigslist for Colorado and nothing has come up. The only thing I have been worried about the non prime lenses is if I zoom from 50-135 or 70-200 will I still have enough light with the lenses going from 2.8 to 3.5 or higher? I wouldn't mind keeping it under $150 if that is possible.

Thanks for the response.
Jim
06-13-2008, 07:22 PM   #4
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QuoteOriginally posted by jbrowning Quote
I wouldn't mind keeping it under $150 if that is possible.
I don't know if you're gonna find a fast auto focus lens in that focal range for that kind of money.

When I was working for the paper I figured out that players have a tendency to migrate to a part of the court they're comfortable with, or at least a part they're responsible for in the offensive/defensive scheme. I'd stake out an angle, pre-focus for that spot, and when the time came,... *snap*! Got my shot.

I also liked the 50mm down close to the boards too. Got some of my best pictures when players were taking what would later become a 3 point shot. There's a natural pause in the action when the corner is reached.

06-13-2008, 08:16 PM   #5
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Hi Jim, yeah what I used last year was my 28-80mm f/3.5 that worked well. I stayed in one corner and used the 28mm when the teams were on my end of the court then the 80mm worked pretty well on the far end of the court. The home gym is very bright so the lens worked out well. It was when we were at other schools that didn't have good lighting I would have to end up using my 50mm 2.8. Which was bright enough but pushed the players so far away that it just didn't work because you had to crop the pictures so bad. I do have a manual 135 f/2.8 but it is so hard to get clear shots with focusing. I thought a 135 f/2.8 af might help me out.

Thanks
Jim
06-13-2008, 09:28 PM   #6
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your other option might be a 100 macro- they're usually f/2.8. however, you're only talking half a stop of light here. have you hit your ISO limit? if not, just bump your ISO up half a stop or more. The K100 should do decent in high-ISO situations, if memory serves.
06-16-2008, 09:40 AM   #7
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you might want to consider a 50-135 F2.8 pentax zoom or I believe sigma 50-150mm F2.8.

While not a prime, it meets your requirements for speed and will be more flexible than a prime.
06-17-2008, 12:09 AM   #8
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agree with lowell here. those two options or I think there is sigma 70-200 f2.8 which would fit your bill too and would be quite a bit longer too...

06-17-2008, 04:41 AM   #9
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QuoteOriginally posted by axl Quote
agree with lowell here. those two options or I think there is sigma 70-200 f2.8 which would fit your bill too and would be quite a bit longer too...
not to mention A LOT heavier
06-17-2008, 03:20 PM   #10
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Wow Lowell Goudge axl at this time those lenses are a little bit (ok quite a bit) more than my pocket book can handle. Thanks for the info though I really appreciate it.

Thanks
Jim
06-17-2008, 03:28 PM   #11
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135mm

I know you stated auto focus, but there are several manual focus k mounts showing at KEH website-very affordable. Just a thought
06-17-2008, 05:17 PM   #12
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Hi Nick, thanks for the reply. I used a manual focus lens one or twice buy I missed a lot of shots that I wouldn't have missed with a auto focus.

Thanks
jim
06-17-2008, 07:08 PM   #13
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QuoteOriginally posted by jbrowning Quote
Hi Nick, thanks for the reply. I used a manual focus lens one or twice buy I missed a lot of shots that I wouldn't have missed with a auto focus.

Thanks
jim
Jim

now that we have established price, (or perhaps your desire for lack of) can I make anogher suggestion. you give up 1/2 stop, but get a great lens, that is probably within your ability to manual focus. I am suggesting a Vivitar Series 1 79-210 F3.5 (version 1)

focusing is 180 degrees (1/2 turn) from closest focus to infinity. it is a one touch zxoom so you can zoom and focus as you go, it is a true zoom, not veri focus, so it holds focus while zooming, and it is constant apature so you don't need to worry about changing apatures as you zoom and continually readjust exposure.

at f3.5 it only gives up 1/2 a stop and is bright enough to focus easily.

I used it for over 20 years (replaced ultimately with the sigma 70-200 F2.8 because I got lazy)

They are a very good lens, cheap, fast easy to use. It might be worth the time to learn MF. Maybe get a catz eye?
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