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Today I received the user changeable adapter. The first hint that it wasn’t the ’standard’ chip was the default f1.4 rather than the f2.0 on the screen.
The directions say it can be used to set aperture value, focal length, calibration for front and back focus, and switch between AF/MF mode. I am only interested right now in the focal length and aperture – but the others I will play with later.
(eBay item #350132914444 – you have to ask for the new chip and pay a small premium for it.)
I quickly
programed it by the use of my one right hand and my two left hands, both with two thumbs. In all, I was successful after the 16th attempt (I kept count on a stroke sheet). The first 15 were just getting used to the instructions. I finally got a handle on it when I tried the alternative method of entering the command mode using the AI SERVO mode.
Now I had an adapter set for 65mm focal length (EXIF info only) and f5.6. I mounted the old M42 lens body containing the VPK Meniscus lens and no aperture mechanism. This being the reason I wanted the adapter – the fixed aperture value.
The Sun was almost set, so I was able to shoot in AV mode against the Sun and every other direction and then to top it off, a shot at the side of the house in very dense shade. I shot with RAW and JPG (I was using the XTi).
Last week I did almost the same thing with my earlier f2.0 adapter and one half of the RAW were seriously dark to full black. The results tonight were very well exposed RAW in all shots. The EXIF showed the 65mm focal length, the aperture of f5.6 and the varying shutter speeds. AND it is also a focus confirming chip.
I am very happy overall and I will be ordering two more as soon as the pension check is deposited next week. This adapter is black anodized aluminum.
To prove it wasn’t a fluke, I dismounted the adapter and lens, mounted an AF lens, shot some with it and then remounted the MF adapter and lens. The settings were still there.
Now I have to wait for a decent day to go out and have some fun with this 90 year old lens.