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Greg the PMX specs suggest 90lbs (or 40.90 kg) as the payload but make no distinction between visual and imaging payloads - which some mount manufacturers do specify. If you use 2/3 rds as imaging capacity that would take you down to 27kg, or 31kg at 3/4 capacity. So are the PMX numbers always listed as the imaging capacity?
Are you looking to reduce that load or your happy with it as is? What makes the dew shield so heavy, is it metal and an accessory to the OTA? I'd think you could get rid of at least 2kg on the front by going to a foam type dew shield. I use a piece of black marine carpet as my dew shield and it probably weighs less than 0.5kg for sure. Weight reduction is good for most scopes if it pushs you away from mount imaging limits.
Last edited by glend; 03-07-2015 at 08:46 AM.
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