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08-15-2007, 04:24 PM   #1
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Lense for wildlife photography

I am in the market for a lense for wildlife photography and was wondering what you guys would recommend? My concern is that some of the better shots would be early morning or at last light so the amount of light available would be an issue.

I was looking at the Bigma or would it be wiser to go with the Sigma 100-300 F4 or the Sigma 300mm F2.8...but it is alot more $$

Any suggestions would be great.


Last edited by harv3589; 08-15-2007 at 04:49 PM.
08-15-2007, 06:40 PM   #2
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If you're looking at small birds, the bigma wins hands down. If you're looking at larger animals like deer/moose/bear, I think the 100-300 would give you the best option for framing/speed and it's only 1 stop slower than the 300mm f/2.8.
08-15-2007, 06:43 PM   #3
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I am thinking for deer and up...I spend alot of time in the mountains here in Alberta so there are tonnes of opportunities. For instance today I was out and had a pack of 9 wolves out about 200 yrds but could not get a decent photo with what I had at the time.

I am wondering if I should just go for the Pentax 300 F2.8
08-15-2007, 07:08 PM   #4
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QuoteOriginally posted by harv3589 Quote
I am thinking for deer and up...I spend alot of time in the mountains here in Alberta so there are tonnes of opportunities. For instance today I was out and had a pack of 9 wolves out about 200 yrds but could not get a decent photo with what I had at the time.

I am wondering if I should just go for the Pentax 300 F2.8
The 300mm f/2.8 might work, or you might need a teleconverter to go with it to get the nessessary reach for a shot like that (referring to the wolves).

08-15-2007, 07:13 PM   #5
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Will a teleconverter degrade the image quality? If it doesn't then maybe the Pentax 200mm F2.8 would work...it sure is alot cheaper than the Pentax 300mm
08-15-2007, 07:23 PM   #6
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I have the 200 2.8 and even with a 2x converter it is ok at that length and you'd better have some light. Pentax just needs to make a 600 f4 again or make the 250-600 again. I have seen the 250-600 recently and I wish that I could find one.
08-15-2007, 07:34 PM   #7
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Do you think the 300mm would be a better idea, and then would the Sigma 100-300 work well?
08-15-2007, 08:50 PM   #8
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I have shot a lot of wildlife in the past 25 years and I can tell you one thing to think of. With a 300 or 400mm lens you need to be as close as a bowhunter to deer or elk, maybe 30 to 40 yards. even with 600mm you would have to crop your image severely for a pack of wolves at 200 yards. Think like a hunter and get closer!

08-15-2007, 09:02 PM   #9
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QuoteOriginally posted by harv3589 Quote
Do you think the 300mm would be a better idea, and then would the Sigma 100-300 work well?
I have the Sigma 100-300mm f4 APO EX DG and the matching Sigma APO 1.4X EX DG teleconverter. It's a fine lens that is reasonably sharp out to 300mm, and it is still a good performer with the 1.4X converter for a 420mm f5.6 lens. I don't know if that is long enough for your needs, and I'm sure the image quality would be noticeably worse with a 2X converter.

It probably out-performs the "Bigma" without the converter up to 300mm, but the Bigma would be as good or better than the 100-300mm with the 1.4X converter. The Bigma would be the best choice for the 400-500mm range. If you need more reach than the Bigma can provide, or substantially better image quality, then there are really no options in the current Pentax line-up. Either a used FA 600 f4 or something from Canon or Nikon would be your best (but most expensive) options.

Last edited by GaryML; 08-15-2007 at 09:52 PM.
08-15-2007, 09:31 PM   #10
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I love my Sigma 70-300mm DG APO Hand Held
You can see some of my shots at -http://www.flickr.com/photos/rodney-pentax-k100d/
08-16-2007, 12:36 AM   #11
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QuoteOriginally posted by harv3589 Quote
Will a teleconverter degrade the image quality? If it doesn't then maybe the Pentax 200mm F2.8 would work...it sure is alot cheaper than the Pentax 300mm
In fact a teleconvertermultiplies your lens errors by 1.4 or 2 and ads is own errors. So its doable with a good lens and a good TC, I have the F* 300/4.5 and the Sigma apo 1.4TC.

Wy not a F*, FA* 300/4.5 or the new DA 300

Guido

Last edited by Geyst; 08-16-2007 at 11:44 PM.
08-16-2007, 04:49 AM   #12
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The bigma is a good lens, but it will hunt for focus in lower light. You'll need to manual focus or find something faster. I am looking at the Pentax SMC FA 400 f/5.6. Not too bright but I think that's a 1/2 stop bigger than the bigma.
08-16-2007, 03:12 PM   #13
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PaulAndAPentax--
I guess if Pentax would just come out with a DA*400mm F4.5 for less than 2 grand we would both be happy
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