Re: Nature lens choices


"Eric Miller" <millerericnospam@xxxxxxxxxxxxx> a écrit dans le message de
news: gxWWf.1047$ki.168@xxxxxxxxxxxxxxxxxxxxxxxxx

Sorry for the following question inside an answer to the previous
question....
Would the Sigma 600mm f:8 (mirror) be an acceptable option (seems to be
about 700$ worth) or would it be considered a wrong choice because not
"fast" enough (f:8)?
Or any comparable mirror, like the Tamron 500mm f:8 ?

Mike


I recently sold my Sigma 600mm Mirror Lens. It is an option. Whether or
not it is acceptable is up to you. Image quality is good for that focal
length in that price range. I would compare the image quality, generally,
to that of the Canon 400mm 5.6L USM with a 2x teleconverter. It's short
length and light weight also make it very difficult to get shake-free
images without a rock-solid tripod in my experience. At f/8, its not a
very good low light performer and the lack of autofocus at that focal
length makes it virtually unusable for quick and not-so-quick moving
subjects, but you can't beat the price. On the whole, for bird
photography, I preferred the superior optics and autofocus of the Canon
400mm to the longer focal length of the Sigma 600 and the Sigma fell into
disuse. But, when a bird was in direct sunlight, you can get decent images
from the Sigma:

<http://www.dyesscreek.com/birds_of_my_backyard/pages/house_finch.htm>

BTW, you shouldn't have to pay more than $300 or so for this lens on Ebay.

Eric Miller


Thanks a lot for caring to answer!
Very informative.
(And logical! Once again you get what you pay for!)

Mike


.

Relevant Pages

  • Re: Nature lens choices
    ... I recently sold my Sigma 600mm Mirror Lens. ... Image quality is good for that focal length ... On the whole, for bird photography, I preferred the superior optics ... and autofocus of the Canon 400mm to the longer focal length of the Sigma 600 ...
    (rec.photo.digital)
  • Re: Want advice on Lens for Pentax K100D
    ... My priorites were image quality and price but ... f2.8 and reasonable macro ability was an attraction also with the Sigma. ... The Shake Reduction feature of the Pentax is the main reason I'm opting ...
    (rec.photo.digital)
  • Re: Canon S3 vs other cameras
    ... taken at the Millville Air Show last year with a 10D & Sigma 80-400: ... What is lacking in your Canon S2 which would prevent you getting pictures ... overall image quality, viewfinder quality. ...
    (rec.photo.digital)
  • Re: Sigma vs Tamron
    ... Sigma 18-200 ... I remember that the Sigma 18-125 was the best lens to go for than the 18-200 because of image quality and it was considered a good all-round walkabout lens. ... For a walk around lens it is hard to beat for its combination of image quality, zoom range, light weight and price. ...
    (rec.photo.digital)
  • Re: Did the Trojan war really happen the way Homer said it did?
    ... Ohlenroth I_ S O S (iota sigma omikron sigma) = equal, ... The standing bird in field 7 ... While the snake of the Bird Goddess of Old Europe was a symbol ...
    (sci.lang)