This time I was ready.

The bird is very shy, and wary of the rapacious quail and doves which dominate the feeder. If doves are the ornithological world’s idea of timidity then I fancy I would rather keep the company of vultures. An early attempt appears here.

The cardinal is impossible to miss. One’s peripheral vision immediately catches the flash of bright red, like an electric shock to the system.

This time I was better prepared, the 500mm Reflex Nikkor attached to the Panny GX7 set at ISO800 which delivered 1/320 second. This at the lens’s fixed f/8 aperture. While hand-held, that’s poor technique as a 1,000mm FFE optic really needs a solid support. I got lucky, aided by the critical focus option in the Panny which permits enlargement of a selected area for proper focus. Of the twenty snaps the first (go figure!) was the only one usable. I would guess that depth of field at 30 feet distant is no more than a couple of inches. The image is from the full frame. I passed the file through PS to remove the out-of-focus ‘donuts’ typical with catadioptric lenses, and often quite distracting. More on that technique appears in the link in this paragraph.

In lieu of the use of Mirror Lock Up which I advocate with a conventional DSLR to cut vibration, I use the GX7’s silent and vibration-free electronic shutter. A Panasonic MFT body is superior in every way to a conventional mirrored DSLR with this lens if you need 1,000mm FFE. You get a vibrationless electronic shutter, a very light rig which can be easily carried slung over the shoulder all day, Panny’s superior magnified focus aid and, best of all, a bright finder image as the electronics automatically adjust for the small f/8 aperture. And to get 1,000mm FFE with the full frame DSLR you have to cut out a large part of the image in processing, rendering your DSLR’s sensor effective pixel count the same as the lower spec of the MFT’s sensor.

Here are the ‘after’ and ‘before’ images:

The Reflex is a special lens, small, light with delightfully smooth focus action, but easy to use it is not. Add a small, nervous subject and you have your work cut out for you.

To learn more of the design history of Nikkor’s reflex optics under Teruyoshi Tsunashima click here.

GX7 with the adapted 500mm Reflex Nikkor. Arca-style QR plate fitted.