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Esoterra
01-01-2006, 09:02 AM
While I have been happy with my Nikkor 50mm 1.8 I do desire a prime lens with a wider angle. I am looking at these two lens'. Anyone have any experience or knowledge on how these 2 lens perform and their quality?

1) Nikon USA Price $ 569.95
Fisheye AF 10.5mm f/2.8G ED DX Autofocus Lens for Digital Cameras (http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=300487&is=USA)

2) Sigma Price $ 549.00
Fisheye 8mm f/4.0 EX Circular Fisheye Autofocus Lens for Nikon AF-D (http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=179374&is=REG)

Also, I want to make sure that I am correct in thinking that the nikon 10.5 will be a true 10.5 on my D70s and not a 16mm with the conversion factor? (I am thinking this because it says its for digital cameras?)

Likewise, the Sigma 8mm would really be a 12mm, correct?


Thanks

coldrain
01-01-2006, 09:26 AM
Are you sure you want to go THAT wide? Fisheye lenses come with a lot of distortion, not really a photographic tool that will be usable a lot.
You are wrong in thinking the 10.5 lens is a 10.5 lens without a 1.5x crop factor. The mm actually mean something, on (D)SLR's. It means the distance from the focal point in the lens to the film or sensor, where all rays of light converge. No matter how much you would crop the photo (or how small you make the sensor or film behind it) the focal point distance remains the same.

So, even though it is a DX lens, it remains a 10.5 mm lens on a 35mm film SLR style camera, and you will need to apply the 1.5x crop factor to understand its field of view compared to a 35mm full frame.

Are you sure you do not want to have a wide angle zoom lens? The Tokina 12-24 f4 will give you near prime image quality with a much more flexible range, and you will have less distortion than with those fisheye lenses... Of course it does not go as wide, but how often can you use a fisheye style lens?

Esoterra
01-01-2006, 09:37 AM
Coldrain, thanks for the feedback. The Tokina looks good- the 12-24 equates to an 18-32 on the D70? as far as the distortion, maybe I was thinking of the wrong thing, but I would be using this type of lense for landscapes and would like the distortion to accentuate the foreground in my pictures. I get the impression that the two fisheye lenses I listed above will accentuate too much though- tell me if I'm wrong I will have to go in to a store and try the tokina out.

Thanks

coldrain
01-01-2006, 09:39 AM
This is how distorted the world gets with that 10.5mm Nikkor:
http://www.pbase.com/cameras/nikon/10_5_28g_dx

and this is how distorted things get with an 8mm circular fisheye:
http://www.pbase.com/cameras/sigma/8_4_ex_circular_fisheye

As you can see, the use of such a wide lens will be limitted....

And this is the world seen through the Tokina 12-24 f4... nice and wide, but not so distorted:
http://www.pbase.com/cameras/tokina/at_x_124_af_pro_dx

or the Canon 10-22mm (only Canon mount of course :( ):
http://www.pbase.com/cameras/canon/ef_s_10-22_35-45_usm

or Tamron 11-18mm (there is a link to a user's gallery with photos of this lens):
http://www.pbase.com/cameras/tamron/sp_af_11-18_45-56_di_ii_ld_if