Nikon 10mm Fisheye EX on a Canon 7D

chadbonanno · Joined: 29 Oct 2010 Posts: 17 Location: Los Angeles

Ok, I am not sure if this is the right place to post this, so admin, feel free to move it.

Here is my issue:

I was given a VERY nice Nikon DX 10mm 2.8 fisheye lens and I want to put it on my Canon 7D viaa a EOS to Nikon adapter that I have used on all my Manual Nikon lenses. This is the FIRST time I am trying an auto lens.

The issue is that when you unmount the Nikon DX lenses, they seam to stop all the way down. I even tried throwing it on a nikon and setting it to 2.8, but when I take it off, I see BLADES!!!

Does ANYONE know a hack that I can apply to this lens to open it WIDE OPEN and KEEP IT WIDE OPEN. I see there is a mechanism on the back that when I push it, it opens the lens wide open. Should I jam that thing open so I can enjoy this fine glass on my Canon?

Any thoughts!

Thanks in advance!

Andrew G. · Joined: 18 Jul 2010 Posts: 159 Location: Pennsylvania, USA

All new Nikon lenses (and all DX lenses) are G lenses. The 'G' stands for 'gelded', these lenses do not have aperture rings.

What you need is either A.) The expensive Novoflex adapter with built-in aperture control for G lenses or B.) A Nikon body.

chadbonanno · Joined: 29 Oct 2010 Posts: 17 Location: Los Angeles

Damn! I actually sprung for the 269.00 Novoflex adapter, but didnt have enough DX glass to justify ( plus had no knowledge of that adapter ) to spring for that model of the adapter.

SOOOOO I guess my question back to that little lever on the back of the lens, if its pushed down, the lens opens WIDE open. What do you think I should do ? Pin it down and hope for the best?

Thanks for the info

Esox lucius · Expire: 2011-11-18

Nikkor lenses with aperture ring on body use the standard Nikon lens to Canon body adapter. For use on a Canon body, the newer G-series Nikkor lenses (which you can identify from the fact that they have no aperture ring) require an adapter which allows you to control the aperture via a lever. The Novoflex one is recommended, I have lots of colleagues who use the Nikkor 14-24/2.8G on their Canon bodies and they are very satisfied with adapter and results.

You either shoot only wide open or buy the correct adapter. Either way, I recommend you read this so that you can see how you should expect the results to be before RAW to JPEG conversion: Nikkor 10.5/2.8G DX Fisheye tested on Nikon crop sensor

http://www.photozone.de/nikon--nikkor-aps-c-lens-tests/207-nikkor-af-105mm-f28g-ed-dx-fisheye-review--test-report

chadbonanno · Joined: 29 Oct 2010 Posts: 17 Location: Los Angeles

very helpful brother! thanks a lot!

I actually just forced it with a small piece of wood to like a 3.5 and mounted it on my 7D. Fairly legit. I am going to try the 5D tomorrow , I am too tired to break it out tonight, but I assume the 5D will look like crap since its a lens designed for crop bodies!

Thanks again everyone

Esox lucius · Expire: 2011-11-18

This is what the Nikkor 10.5mm f/2.8G DX Fisheye will look, when shot on a full-frame DSLR

http://www.flickr.com/photos/mark6mauno/2152745793/

As you can see from the image, this lens is designed to cover a smaller area sensor.