elpajare
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home town/country: Girona-Spain
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Post by elpajare on Mar 2, 2019 9:41:39 GMT
The old known galaxy Messier 51 with different setups. SKW Quattro 200+ IMX224 OMEGON RC 154+ IMX294 TSOPtics 72 + IMX294 Everyone can draw their conclusions
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Deleted
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Post by Deleted on Mar 2, 2019 13:02:16 GMT
Carlos,I like the RC with the 294. I know you dont like using focal reducers. What exposure times do you need on the f9 RC compared to the f4 quattro. cheers Paul
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elpajare
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Posts: 438
home town/country: Girona-Spain
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Post by elpajare on Mar 3, 2019 8:09:45 GMT
Thanks Paul
RC scopes are the most used by professional observatories as they dont have most frequent optical errors and other advantatges. I like them too. Probably my next scope will be a RC 8" in substitution of the Quattro 8" , too heavy for my age..haha
With the three setups that I use frecuently, exposition is between 5" and 20" they are all short expositions.
The RASA and the RC are mirrors scopes and dont have chromatic aberration I never use any filter IR/UV in there. I only use UV/IR in TS Optics refractor.
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Post by Deleted on Mar 3, 2019 8:45:25 GMT
Carlos,I find that very surprising that you get such good images with 20 sec exposures with the RC at f9. I have a lot of trouble with my sct's at f10 even with focal reducers. I need to reduce to f3 to get an image that is still usually pretty bad. cheers Paul
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elpajare
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Posts: 438
home town/country: Girona-Spain
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Post by elpajare on Mar 3, 2019 9:01:52 GMT
Do you use the IMX294?
Maybe the difference is in the software.
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Post by Deleted on Mar 3, 2019 9:51:04 GMT
I can only use the 294 with the 6.3 focal reducer and that is not enough FR on sct's. The 3.3 meade FR and the optec 3.3 are only for the small sensors . I found the fast newtonians gave better images than the sct's. I have never used a RC. They must be very different to sct's cheers Paul
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elpajare
Member
Posts: 438
home town/country: Girona-Spain
time zone gmt +/-: 1
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Post by elpajare on Mar 3, 2019 12:10:19 GMT
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