1969 Nikorr 1000mm Mirror on 20D

[Rob.B]

Hi.

Comments please, this shot took around 20 minutes of focusing on an empty log before the Water Vole turned up for lunch. This was my first outing, (and so far my only outing) with this lens.

Canon 20D, cheapo adaptor plate curtosy of Ebay, Nikor 1000mm f11 mirror Series 1 circa 1969 (Church Jumble sale Hartington). Manfrotto Tripod & head. (Shutter speed not recorded.) Cable release (breathing on this set up moves it the image alarmingly). Adjustments, auto levels CS2, no crop.

[Robert_Lay]

Looks like it was a tough shot.

The bokeh is most unusual. I assume that it can be attributed to some strangness in the diaphragm of the Nikkor lens. Was it used wide open?

[CyberDyneSystems]

It's a normal artifact of the mirror lenses, the mirrors are in essence 'donut shaped" and thus you get donuts in the highlights..

These lenses will et you close, but the image quality tends to leave a lot to be desired. Very tricky to use, you did a wonderfull job!
Were not getting the deatil I like to see, don;t know if that is directly realted to the lens, or indeirectly via camera shake or motion blur and slow shutter speeds dictated by f/11

Also, the subject is a little too centered for this landscape shot IMHO. If you want to center the subject, you might try cropping more off the sides to get in even closer, but if you want to leave in some of the environment, you might want to try using the rule of thirds to place the subject.

[elysium]

Wow, amazing shot. Agree on the bokeh

[Rob.B]

Hi.

Thanks for the comment's, points taken on sharpness and composition, but this was shot in the wild not in am animalpark, so I took what I could. For those of you not familiar with mirror lenses, the broketh in the shot is an artiface of the lens construction rather than the diaphram (it does not have one, just fixed at f11). The Vole was around 100ft or so from the camera when this shot was taken.

From your comments I thinkit is worth another outing in the right (plenty of it) light. I enclose a link to a history page showint the lens in question.

Thakns again.

Rob.

http://www.mir.com.my/rb/photography//companies/nikon/nikkoresources/6070nikkor/reflex/1000mm.htm

[Marcy]

would that adapter work with any pre auto focus Nikon Lens ? 300mm or just the mirror type?

[Rob.B]

Any Nikor, their mount hasn't changed for years.

[Robert_Lay]

It's a normal artifact of the mirror lenses, the mirrors are in essence 'donut shaped" and thus you get donuts in the highlights.. .

I had a "senior moment" in regard to "Mirror Lens" - now I realize that you are talking about the Cassegrainian design used in telescopes. I had forgotten that there were photo lenses of the same design.