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Old 25-02-2021, 04:31 PM
Startrek (Martin)
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Join Date: Dec 2017
Location: Sydney and South Coast NSW
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Quote:
Originally Posted by Karlz View Post
Your Canon would've had 44mm from flange to sensor, so with T-mount added would give 55mm not the 50mm you have written. Only thing I can think of is that your sensor is fractionally larger that it's showing the outer limits now.
I used a thin feeler gauge blade to measure from the sensor face to the outside edge of the Canon t ring adapter. The shutter was open so I could get past that and down to the face of the sensor ( being careful not to touch the sensor itself)
It measured 50mm ( checked it twice) with the Canon at ring adapter locked in.
Unless there is another glass plate over the sensor ( which I couldn’t see using a torch ) but even if there was it would only be another 1 or 2mm
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