I understand that natively the bolt patterns don’t line up as the mounting bolts for the new 50mm square filter wheel is on a (D99mm/R49.5mm) vs the 2” EFW with both (D80mm & D62mm / R40mm & R31mm).
However since the new filter wheel mounts on the 461MM pro with the tilt plate removed at a back focus of 17.5mm which is equal to the back focus of the 6200MM/2600MM at 17.5mm with the tilt plate this should allow the factory tilt plate to be removed on the 6200MM/2600MM and a custom tilt plate created that is wide enough to be tapped for the 5 bolts 60 degrees separated on a D99mm/R49.5mm so that the filter wheel could be mounted.
One thing I noticed is the back focus on the 461MM (17.5mm no tilt plate)+ darkening ring (0.2mm) + 50mm square eaf (16mm) + OAG-L-68 (17.5mm) + M68 Tilt plate (5mm) comes attached with oag-l-m65 + 2 darkning rings (.2mm each) this is a total back focus of 56.4mm vs 55mm.
So my question on back focus is that if I am having a custom piece made should I have that part made be 3.4mm vs 5mm to get back to a 55mm back focus or is there a reason that with the 461MM you guys went with a 56.4mm back focus vs a 55mm? does this matter?
As a final note ZWO could make this custom tilt plate for 6200/2600 owners and then you could officially support the new EFW on all your camera models. For ZWO all it would take is a modified version of the existing 461mm tilt plate that is tapped to receive the 50mm square EAF D99mm/R49.5mm and tapped for the tilt plate holes for the 6200/2600 D80mm/R40mm. (this would be awesome a I would definitely be a willing alpha tester 😊
The config would be:
6200/2600MM pro (12.5mm no tilt plate) + New custom tilt plate with a D106mm and tapped for the D99mm holes for the 50mm square EFW and the D80/R40 tilt plate holes for the 6200/2600 (5mm) + darkening ring (0.2mm) + 50mm square eaf (16mm) + OAG-L-68 (17.5mm) + M68 Tilt plate (5mm) comes attached with oag-l-m65 + darkening rings (.2mm each) this would then match the back focus for the 461mm at 56.4mm exactly.
Please provide your feedback and validate these assumptions
