hmm.. is this an april fool's joke?

Here is the place to talk about all those equipment(Telescope, Mounts, Eyepieces, etc...) you have. Not sure which scope/eyepiece is best for you? Trash it out here!
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jermng
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Post by jermng »

You guys what what the CO of the Meade RCs are? THey're supposedly good for visual too ....
Jeremy Ng
C8, CR-150HD, TMB 80 f/6
Orion SVP Intelliscope, AstroSlew I
Minolta Activa 12x50WA
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rcj
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Post by rcj »

VinSnr wrote:
The Orion 6" RC has a 50% CO. The 8" one has 44%.

Think ok for imaging but for visual. think can't make it.
Sorry, was not clear in my explanation. Was referring to CO area obstruction...
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cataclysm
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Post by cataclysm »

Imo, an 8'' F/4 to F/5 newtonian coupled with MPCC would be my prefered choice. Imaging at F/8 to F/9 feels very daunting. :)
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VinSnr
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Post by VinSnr »

cataclysm wrote:Imo, an 8'' F/4 to F/5 newtonian coupled with MPCC would be my prefered choice. Imaging at F/8 to F/9 feels very daunting. :)
That's true. The Vixen 8" f/4 is a good choice.
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rcj
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Post by rcj »

My sentiments too! Probably that is also why i don't image galaxies that often. Shooting at 1000mm is already quite challenging unless you have a very stable and predictable, reliable mount. It is good for the manufacturers to come out with new and cheaper products that bring down the affordability for imaging, but time-tested older products like the VISAC (for >1000mm) and R200SS used by several imagers all over the world together with modified DSLRs or entry level CCDs should provide the proof in the pudding that such systems work too. It would be good to wait for emerging testers for these new mass RCs from the larger community to see if they are indeed products with performance as advertised by the manufacturers.
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MooEy
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Post by MooEy »

heh, shooting at short focal length of 500-700mm allows u to use a small sensor and yet squeeze most objects into the fov. imaging at a focal length of 1600mm would require a reasonably large sensor, preferably at least 4/3 or even aps-c.

next if u consider how to mount that scope, the cheapest decent mount may very well be the em-200, atlux or mach1gto. eq-6 would prolly be pushing luck and struggling with guiding.

given that r200ss/vc200l with coma corrector/reducer can be gotten for similar amt of money, the qns of whether to struggle with a slower scope comes in.

just cleaned out the r200ss today, wondering how it would feel like to image with that scope. pretty hard for me to choose using the 800mm f/4 newt over the 500mm f/5 apo.

~MooEy~
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MooEy
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Post by MooEy »

http://www.astronomics.com/main/product ... t_id/AT8IN

meh, 449 only, who is ordering?

~MooEy~
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