Which 4"refractor for mainly astrophotography?
Posted 17 May 2013 - 02:57 PM
Altair Wave Series 102mm F7 Super ED Triplet APO (102/715);
TS PHOTOLIN'E 102mm f/5,2 Flatfield Super APO telescope;
APM 107/700 F6.5 Super ED Triplet APO w 3" APM focuser;
William Optics FLT 98 APO Triplet;
Skywatcher Esprit ED 100 PRO 5-element.
These vary from about £1400 to £2300.
My budget is around £1700 but could increase for the right OTA (and flattener/reducer if required).
I only want to buy once and am prepared to wait. I am a relative newbie where Astrophotography and refractors are concerned. Looking at the short list, i have a few concerns from looking around the internet...
Altair - a bit slow at f7 and no dedicated reducer yet?
TS 102 - not found any reviews etc on them?
WO - Recent quality / build issues concern me.
Esprit 100 - Really stretches my budget and they don't seem to be in stock anywhere.
I would be interested in peoples thoughts on these or any other scopes...
Posted 18 May 2013 - 12:12 AM
Posted 18 May 2013 - 01:06 AM
Thanks for the link - some fantastic images there. It gives me a good idea of the FOV available with the different combinations with a chip size that is similar to mine.
Posted 18 May 2013 - 01:18 AM
My budget is around $1500 & I had shortlisted "Explore Scientific 102mm f/7 Triplet Apo in Carbon fiber" which retails for $1499. Being carbon fiber this scope is really light & would be a good match for HEQ5.
Have you considered this scope, reviews seem good.
I am yet to purchase this refractor so can't give u any reviews.
Posted 18 May 2013 - 01:36 AM
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