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Old 12-02-2021, 10:24 AM
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Astrofriend (Lars)
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Astrofriend is offline
Join Date: Aug 2017
Location: Stockholm, Sweden
Posts: 334
Hi Adam,
Here is more to it. Today I have made the pulley I will use to connect the lens to the motor focuser. I chosen the same 180 teeth that I have made to the Canon 300 mm lens.

Here it is:

Now it's complete and ready for some test photos, but first I shall test my Canon lens more. Take it out to some dark place relative my home in the city.

Your Canon 500 mm f/4 lens must be very exiting to use for astrophotography.

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