Quote:
Originally Posted by strongmanmike
 ...I fear the greater than 10 arc min FOV's may cause you agoraphobia and general dizzyness 
Looks pretty promising Fred the image looks quite good..go for it, getting colour images in every frame will be welcomed light relief  ...actually I think about doing something like this myself sometimes  LRGB can be a little annoying at times huh?
Mike |
Well, funny you say that, im tempted also by a large chip one shot colour cam and avoid the expense of large filter wheel and filters etc. Especially one with internal guide as it would be not filtered, and save the bother of an external guide scope. Despite the lower QE, it would be very convienient for portable field use for dark skies LRGB (hopeless in Sydney)and guarentee a result regardless of fleating "conditions" (including mine
).
Quote:
Originally Posted by Doomsayer
Hi Fred.
Surprising you would do this knowing your usual predilections for long FL.
However, I am on a similar path. With my 12RC on PME with a 6"f3.9 CF tubed newt RFT about to piggyback. I'm glad to see the MT160 being exploited for imaging - they have such spectacular optics visually. I also have an MT130 for visual - an amazing visual scope - I may yet give it a go with a camera and the MPCC. I hadn't tried this since I thought the dedicated but rare Tak corrector-reducer was the only way to go.
I plan to take the 6" RFT (almost fully built) in the field for imaging as well (hopefully to SPSP), riding on a Tak EM200. So I'd say a 'tweaked' EQ6 should handle the MT160 fine (I have seen your MT in the flesh elsewhere). My 6 will probably weigh about the same as the MT160 or more?, since It will have a heavy duty focuser cage mount to carry a PDF focuser, PL11002M and filter wheel, with an internally mounted MPCC.
cheers
guy
|
Yeah well, long FL is just too hard in the field, im not going to lug a PME around, so realistically its WW (wide field wooze) there im afraid
.
I too was concerned about the lack of the rare dedicated Tak reducer/corrector availability (I only have the f8 corrector), but the MPCC seems to do the trick nicely, I am pleasently supprised, and I would imagine it would also work on the MT130. I suspect now it would be fine with the PL11k
The visual use aspect of the MT160 is also attractive, I well, never look through an eyepiece, I would dare in dark skies with this OTA
.
From the end of the focuser to the imaging chip seems to be some 60mm (with focus travel to spare), I can find you more detail if you wish if you are thinking of the PL11k/PDF focuser/filterwheel, but I think that might be a stretch.