Just would like to share my impressions with this simple purchase.
DobMod
DOBSONIAN TELESCOPE EXPERIENCE, MODIFICATIONS, TIPS, REFERENCE, HINTS, IDEAS, WHISHES
DIY
Newtonian
OTA
collimation
3D Print
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
Sunday, January 31, 2021
Orion 70mm Multi-Use Finder Scope
Thursday, June 25, 2020
Internet of Things for amateur astronomy.
or The ultimate Telrad / QuInsight USB Power / Blinker Mod
I had that "blinker mod" implemented over a decade ago using the trivial LM555 timer IC for my Telrad (you can easily google for that circuit and Telrad integration guides, there are plenty online). But as I have recently acquired the more advanced collimator sight the QuInsight I decided to make a more advanced blinker as well. But it turned out so advanced that I see it frankly opening the IoT era in amateur astronomy!
Wednesday, April 29, 2020
TPM Telrad Pattern Matching


I bet you have heard dozens of answers to that already. After asking that question for over 40 years myself and trying what others doing to solve that problem I have finally got the definite answer: the TPM. Which stands for "Telrad Pattern Matching".
Sunday, January 19, 2020
QuInsight the Telrad successor
QuInsight is the newest telescope pointing device leveraging the collimator principle similar to the Telrad. It has been designed and manufactured in 2019 by Rob Brown. Rob has a background in Optics engineering and owns a 3D printer which he is using to produce components of Quinsight.
I believe the QuInsight design is the best thing happened to the Telrad idea in the past 40 years (since the Telrad invention).
Wednesday, March 27, 2019
Dob Dolly. Furniture dolly mod to carry 12" Dob.
This is a really trivial construction which I've assembled in like 15 minutes from the scrap at hands to haul my Zhumell 12" pre-assembled to the other side of the high-rise multi-apartment building I'm living in (as well as to the roof in two runs). I'm observing from home right on it. It turned to be a very sturdy, mega-convenient, and fun to use system.
I think the image is selfexplanatory but folks from one of the forums begged me to share details anyway, thus they are under the cut along with all of the benefits list.
Friday, March 15, 2019
Time left before the sunset
This is the old boy scout method of determining the time left until the sunset (or elapsed after the sunrise) "manually".
And here is how I have it criticized for my backpacking group folks:
Saturday, March 2, 2019
5 Watt flashlight conversion for $5
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