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Hi i have the az-gti eq mode and i have a 102-1300 maksutov, but now i want a deep sky telescope, i know the mount can only have 5kg weight, some recomendations?
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Hi Carlos Alot depends on your budget. Something like a Redcat 51, a sharpstar 61 or a SW evostar 72 ed depending on what you want to spend woukd be ideal, along with a 533mc camera. |
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I would say something in 60mm range. I used a William Optics Z61 for over a year with it. And easily got five minutes subs with it. There's quite a few options in that range.
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I'm using an Askar 71F along with IMX585 and performs pretty well
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I have a Redcat 51mm on an AZ-GTI mount in EQ mode. No issues.
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I did some stuff with Az-GTi in eq mode with a Lacerta 80/500… It worked but nevertheless I would recommend a short 72mm Apo at max (the Lacerta one is a fine piece if scope in my opinion).
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To be honest, it all comes down to your pixel scale. I had a takahashi fs60cb on my azgti with either a 585mm or 533mm giving me a pixel scale of around 2 - 2.7 arcseconds per pixel and my azgti would merrily guide to around 1 - 1.5 arcseconds per pixel so I was good for up to 5 minute exposures no problem. If you're not looking at guiding with your rig, then, with a scope in the 250-400mm focal length range, and a camera with a pixel size of around 3-4 microns, you should be fine for 1 minute exposures unguided so long as you're polar alignment is good. You may end up throwing the odd sub away due to start trails but it shouldn't be too bad. |
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Askar 65 PHQ, Askar FMA 180 pro, Redcat 51.
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Redcat 51
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As an alternative you can also look at Askar SQA 55 f/4.8 along with any OSC such as ZWO ASI M533 MC Pro. It is quite price competitive as compared to Redcat with same performance |
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I would say something in 60mm range. I used a William Optics Z61 for over a year with it. And easily got five minutes subs with it. There's quite a few options in that range. I use this combo as a travel scope (with an ASI294MC Pro and ASI AIR) - very easy to pack and set up etc. |
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I use a poor mans RedCat: Evoguide50 ED for imaging (and a ZWO585MC pro), great combination and cheaper than the RedCat.
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Elwin Afman: OP will need to get the Starizona flattener for this one. Skywatcher FF doesn't allow the use of a filter drawer because it has only 17.5mm backfocus, if I remember correctly. Pretty sure OP would want to use a UV IR cut at least, because the 585 uses an AR window. |
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@oscas Oscar:Elwin Afman: True, i use the new V3 EvoFF with the 55mm backfocus. |
