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02-20-2009, 12:25 PM   #1
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HELP: Need Advice on Lens for Costa Rica

Hi all,

I need your help, I'm a new amateur photographer, I have a K10D and only the kit lens and a DA 50-200. I'm going to Costa Rica, and am not sure what lens would be best for wildlife/nature shots. I'm not sure what reach is best...I've been looking at Pentax 50-135, 200 2.8, 300 F4, or Sigma or Tamron 70-200 2.8. (I was seriously thinking of the sigma but someone who sells and rents lenses told me they've had lots of problems with it, and I'm on a budget, this is a really big purchase for me). Do you think 50-135 is enough reach? Is a fixed 200 or 300 lens too long, and will it be too much of a pain? I've never been there before, and I really don't know what to do. Do I need a 2.8 aperture, or is a 3.5 or 4 good enough in the jungle?

I'd really appreciate any help.

Sincerely,
Beth

PS - I'm running out of time, have to make a decision quick, only a few more weeks before my trip.

02-20-2009, 01:44 PM   #2
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I have the tamron 70-200 f2.8 and its a great lens. But, it is a bear to lug around on a hike. The 55-300mm pentax sounds like it might be a good choice for you. they are around $300 on ebay. The 50-135 with a teleconverter would be another possibility, at 2.3x the $'s. A very inexpensive alternative is the tamron 70-300mm ld di macro or the sigma 70-300mm counterpart. they can be picked up for $90-120 used and $150-175 new (both are quite sharp up to about 200-210mm and then get softer) the tamron can give you purple fringing in high contrast shots.
02-20-2009, 03:48 PM   #3
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Thanks...is the 55-300 that much better than the DA 50-200? Is it that much bigger (in reach, 200 vs 300)? I thought I might be better off going with a faster lens, that the 55-300 might be too similar to my 50-200?

By the way, do you know how the sigma is compared to tamron (70-200 2.8)...I've see some good reviews but someone who rents lenses told me they'd been having problems with it.

Beth
02-20-2009, 07:42 PM   #4
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Beth:

Go here: https://www.pentaxforums.com/forums/gatherings-events-photo-trips/48822-new-g...rica-trip.html

02-20-2009, 07:59 PM   #5
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QuoteOriginally posted by beth_w737 Quote
Thanks...is the 55-300 that much better than the DA 50-200? Is it that much bigger (in reach, 200 vs 300)? I thought I might be better off going with a faster lens, that the 55-300 might be too similar to my 50-200?

By the way, do you know how the sigma is compared to tamron (70-200 2.8)...I've see some good reviews but someone who rents lenses told me they'd been having problems with it.

Beth
much better iq with the 55-300mm, not that much bigger in size. the sigma 70-200mm is quieter and focuses faster, but is not quite as sharp. its about the same size and weight as the tamron. they are not what i would call "walk-around-lenses". the 50-135 is. best to go to a shop and take a look at them, then decide. heres another option, Sigma 50-150mm f/2.8 f2.8 II EX DC APO. If you want a long lens for wildlife. the DA*300mm is excellent and the Sigma 100-300mm is a great lens also. if you have the budget, i would select one of those and take a 1.4, 1.5, or 1.7 teleconverter. wildlife is outdoor shooting usually with good light, so the f2.8 is not a big requirement. You can shoot up to 400 iso with good results on the k10d.

Last edited by ivoire; 02-20-2009 at 08:12 PM.
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