What thread on a Coronado SolarMax II 90 H-Alpha Filter

Frankenscope? Let's see it!***be advised that NOTHING in this forum has been safety tested and you are reading and using these posts at your own peril. blah, blah, blah... dont mess around with your eyesight when it comes to solar astronomy. Use appropriate filtration at all times...
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axle01

What thread on a Coronado SolarMax II 90 H-Alpha Filter

Post by axle01 »

Can anyone tell me what size thread is on a Coronado SolarMax II 90 H-Alpha Filter so I can ask my machinist to make me an adapter.

Alan


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Rybak
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Re: What thread on a Coronado SolarMax II 90 H-Alpha Filter

Post by Rybak »

Alan, the size of thread is on my sketch: 4.25" X 24


Aleksey

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Lunt LS100THa, Coronado SolarMax II 90 Filter + BF 15 on WO Megrez 90, PST + SW 1025 mod, Quark + SW150/750 in test mode
axle01

Re: What thread on a Coronado SolarMax II 90 H-Alpha Filter

Post by axle01 »

Aleksey I wasn't sure so i was going to show my machinist tomorrow but thought I should know just in case he asked.


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Re: What thread on a Coronado SolarMax II 90 H-Alpha Filter

Post by Rybak »

Alan be sure it is thread size on Televue 101/102 and SM90 threads directly on to it.


Aleksey

-------------

Lunt LS100THa, Coronado SolarMax II 90 Filter + BF 15 on WO Megrez 90, PST + SW 1025 mod, Quark + SW150/750 in test mode
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