Full Fisheye Lens

Full Fisheye Lens
What does the “0.20X” mean in the description of a fisheye lens? 10 POINTS BEST ANSWER!!?

I am looking at buying a cheap fisheye lens adapter to take skiing with me and realized that in the description of the lens it states “0.20X Professional Super AF…” I have no idea what the .20X means. Does it only pertain to fisheye lenses? Here is the full ttitle “Opteka HD² 0.20X Professional Super AF Fisheye Lens for Canon Eos Digital Rebel XT, XTi, XS, XSi, T1i, 1D, 5D, 7D, 10D, 20D, 30D, 40D, 50D Digital Slr“.

this is the link if it helps: http://www.amazon.com/Opteka-0-20X-Professional-Fisheye-Digital/dp/B001K5R38Q/ref=cm_cr_pr_product_top

thanks and remember 10 POINTS!!!!!!!!!!!!!!!!!!!

put the X on the other side… x 0.2, and put your lens in front of it.. 18mm x0.2, and your answer is 3.6mm. The adapter will multiply the focal length of the lens you put it on by 0.2.

The 1st post has it backwards, a larger number does not increase the effect, just the opposite.

UNBOXING Free Deck + Opteka 0.43x HD² Full Fisheye + X-Grip

eBay Logo  

Nikon Fisheye Zoom Lens AF-S Fisheye NIKKOR 8-15mm f / 3.5-4.5E ED Full Size Com


Nikon Fisheye Zoom Lens AF-S Fisheye NIKKOR 8-15mm f / 3.5-4.5E ED Full Size Com


$1,598.88


Nikon fisheye zoom lens AF-S Fisheye NIKKOR 8-15mm f / 3.5-4.5E ED full-size cor


Nikon fisheye zoom lens AF-S Fisheye NIKKOR 8-15mm f / 3.5-4.5E ED full-size cor


$1,461.73


Nikon fisheye zoom lens AF-S Fisheye NIKKOR 8-15mm f / 3.5-4.5E ED full-size cor


Nikon fisheye zoom lens AF-S Fisheye NIKKOR 8-15mm f / 3.5-4.5E ED full-size cor


$1,404.45


Nikon Fisheye Zoom Lens AF-S Fisheye NIKKOR 8-15 mm f/3.5-4.5 E ED Full Size EMS


Nikon Fisheye Zoom Lens AF-S Fisheye NIKKOR 8-15 mm f/3.5-4.5 E ED Full Size EMS


$1,302.09


Nikon Fisheye Zoom Lens AF-S Fisheye NIKKOR 8-15 mm f / 3.5 - 4.5 E ED Full Size


Nikon Fisheye Zoom Lens AF-S Fisheye NIKKOR 8-15 mm f / 3.5 – 4.5 E ED Full Size


$1,322.19


Canon Ultra-Wide-angle Zoom Lens EF8-15mm F4L Fisheye USM Full Size   New


Canon Ultra-Wide-angle Zoom Lens EF8-15mm F4L Fisheye USM Full Size New


$1,288.68


Nikon Fisheye zoom lens AF-S Fisheye NIKKOR 8-15mm f / 3.5 - 4.5 E ED full size


Nikon Fisheye zoom lens AF-S Fisheye NIKKOR 8-15mm f / 3.5 – 4.5 E ED full size


$1,236.41


Canon ultra wide angle zoom lens EF 8 - 15 mm F 4 L fish eye USM full size


Canon ultra wide angle zoom lens EF 8 – 15 mm F 4 L fish eye USM full size


$1,178.95


Nikon fisheye lens Ai AF fisheye Nikkor 16mm f / 2.8D full-size corresponding


Nikon fisheye lens Ai AF fisheye Nikkor 16mm f / 2.8D full-size corresponding


$1,012.54


Nikon fisheye lens Ai AF fisheye Nikkor 16mm f / 2.8D full-size corresponding


Nikon fisheye lens Ai AF fisheye Nikkor 16mm f / 2.8D full-size corresponding


$970.34


Nikon Fisheye Lens Ai AF fisheye Nikkor 16mm f / 2.8D Full size compatible [NEW]


Nikon Fisheye Lens Ai AF fisheye Nikkor 16mm f / 2.8D Full size compatible [NEW]


$914.69


Nikon AF FX Full Frame Fisheye-NIKKOR 16mm f/2.8D Fixed Lens - OPEN BOX


Nikon AF FX Full Frame Fisheye-NIKKOR 16mm f/2.8D Fixed Lens – OPEN BOX


$885.00


Nikon Fisheye Lens Ai Af Fisheye Nikkor 16 Mm F / 2.8 D Full Size Compatible New


Nikon Fisheye Lens Ai Af Fisheye Nikkor 16 Mm F / 2.8 D Full Size Compatible New


$844.40


Nikon Fisheye lens Ai AF fisheye Nikkor 16 mm f / 2.8 D full size compatible F/S


Nikon Fisheye lens Ai AF fisheye Nikkor 16 mm f / 2.8 D full size compatible F/S


$819.19


Nikon fisheye Lens Ai AF fisheye Nikkor 16mm f / 2.8D Full Size New


Nikon fisheye Lens Ai AF fisheye Nikkor 16mm f / 2.8D Full Size New


$817.99


Nikon Fisheye lens Ai AF fisheye Nikkor 16mm f/2.8 D full size compatible 543066


Nikon Fisheye lens Ai AF fisheye Nikkor 16mm f/2.8 D full size compatible 543066


$811.99


Samyang Single-Focus Fisheye Video Lens Vdslr 12Mm T3.1 Full Size For Sony A New


Samyang Single-Focus Fisheye Video Lens Vdslr 12Mm T3.1 Full Size For Sony A New


$706.63


Samyang Single-Focus Fisheye Video Lens Vdslr 12Mm T3.1 Full Size For Pentax K


Samyang Single-Focus Fisheye Video Lens Vdslr 12Mm T3.1 Full Size For Pentax K


$707.63


Samyang Single-Focus Fisheye Lens 12Mm F2.8 Full Size For Nikon F Ae New


Samyang Single-Focus Fisheye Lens 12Mm F2.8 Full Size For Nikon F Ae New


$682.72


Sigma Single-Focus Fisheye Lens 15Mm F2.8 Ex Dg Diagonal Fisheye Full-Size Corre


Sigma Single-Focus Fisheye Lens 15Mm F2.8 Ex Dg Diagonal Fisheye Full-Size Corre


$672.77


Rokinon 12mm F2.8 Ultra Wide Fisheye Lens for Nikon AE DSLR Cameras - Full Frame


Rokinon 12mm F2.8 Ultra Wide Fisheye Lens for Nikon AE DSLR Cameras – Full Frame


$625.00


Tokina AT-X 16-28mm f/2.8 Pro FX Lens For Full Frame FX Nikon DSLRs Black NEW


Tokina AT-X 16-28mm f/2.8 Pro FX Lens For Full Frame FX Nikon DSLRs Black NEW


$559.00