Lens Comparisons

Use Photoshop $30 plug-in Fisheye-Hemi Converter on Fisheye pix to eliminate distortion in one dimension and keep full FOV. D7000 has APS-C size sensor.

  Tokina 10-17mm f/3.5 Fisheye Tokina 11-16mm Wide f/2.8 Nikkor 10.5mm f/2.8 Fisheye Sigma 10-20mm Wide f/3.5

Sigma 10mm f/2.8 for Nikon

works well on D7000

Samyang 8mm f/3.5 Peleng 8mm f/3.5 fisheye (beats Samyang 8mm)
Wt 350g 560g 306g 520g 476g   400g
close focus 5.5in   5.5in =1.2" from lens front 9.4in 5.3in   7.9in
max FOV 180 deg 104 deg 180 104deg 180deg   180deg
# blades 6 9 7 7      
filters? no 77mm no 82mm no, but rear gelatin filters can be done   no, but rear gelatin filters can be done
price $669 BH $599 BH $649 Adorama $599 $649 BH    
Rockwell     here        
comments     Capture NX2 can correct the distortion perfectly with one click   has very quiet in-lens AF, vs noisey in camera AF for Nikon 10.5mm. Can AF on D40, Nikon can't "soft at f/3.5"  
picture of lens     here   here