My ETX-125 is mostly accumulating dust for the past several years (you can clearly see that from the images below), as my DSO observing passion is asking for the 12" aperture every time I'm going out to the rural darkness. But I'm always taking the DSLR camera with me to image the spectacular wilderness I'm passing through for hours on the way in and out of my dark sites. Occasionally I'm taking long exposure sky images as well on the tripod... But wait a minute, my ETX-125 has a decent clock drive! In just one evening I've made a proof of concept wide FOV AP rig based on it with very minimal alterations of the Meade fork mount.
The results have frankly exceeded my expectations! It's rock-solid, very easy to make at home and setup in the field, and allows quite a long exposures with an ordinary 50mm DSLR lens (I'm using Nikon Nikkor 50mm 1:1.2). The above image is made with the help of the UHC 2" filter just laying over the UV filter on the lens (it's needed for better optical surfaces alignment, as I couldn't just screw it in, but it is slightly larger than 2"). More images are under the cut, just click "more" below.
DIY
Newtonian
3D Print
OTA
collimation
Eyepiece
Zhumell
camping
chair
reference
transport
AstroScan
ETX-125
FOV
Focuser
alignment
car
cradle
laser
mirror
plywood
AFOV
Astromist
DSO
Electronics
Photography
apperture
collimator
diameter
finder
green laser
handle
telescope
telrad
tips
weight
Adaptor
Barlow
Celestron
Clockdrive
GSSP
Imaging
PDA
Photoshop
Refractor
Specs
Televue
Wide Field
Windows
about
balance
ball
carry
catalog
cleaning
counterweight
dark adaptation
dew
dob
finderscope
focal
gain
goto
haul
heavy
height
hoping
hopping
length
limit
magnet
magnitude
map
motion
mount
objects list
observing
phone
ratio
red dot
resolution
simple
size
sky
spherical
star test
tracking
travel
zoom
Showing posts with label Clockdrive. Show all posts
Showing posts with label Clockdrive. Show all posts
Tuesday, September 20, 2016
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