Image of the day

Captured by
Gerald Elkin

House Finch

About Astromart

My Account

New to Astromart?

Register an account...

Need Help?

Posts Made By: thomas zukouski

October 20, 2007 07:36 PM Forum: Equipment Talk

drive motors

Posted By thomas zukouski
i have older mount that used hurst synchronus motors.they seem to have gone bad. can anyone tell me what to replace them with?

June 11, 2010 09:44 PM Forum: Refractors

150 mm skywatcher 4 lense refractor

Posted By thomas zukouski
hi, i bought a skywatcher 150mm f8.3 refractor thats supposed to have 4 lense elements! i can't find any info on it,anyone have any info?

June 13, 2010 11:30 AM Forum: Refractors

150mm 4 lens skywatcher refractor

Posted By thomas zukouski
i still can't find any lit. on it even at skywatcher site! roland christen says it can have 4 lens if normal glass. i hope not,it will probably suck,only paid 599.00 . even spec sheet at opt. says 4 lens achromat.

June 13, 2010 11:42 AM Forum: Refractors

150mm 4 lens skywatcher refractor

Posted By thomas zukouski
even 2 lens has defocused color

June 13, 2010 11:50 AM Forum: Refractors

150mm 4 lens skywatcher refractor

Posted By thomas zukouski
i also sent opt an email stating that i think specs are in error and when i get it if i don't like it will send it back.also who is going to grind 4 separate lens elements of normal glass to save money, when they can grind 2 of crown and flint.

June 13, 2010 12:00 PM Forum: Refractors

150mm 4 lens skywatcher refractor

Posted By thomas zukouski
:S it seems i'm getting a one of a kind 4 lens 150mm refractor and just for 600.00!!! :S

June 13, 2010 12:15 PM Forum: Refractors

refractors are the bomb@some questions?

Posted By thomas zukouski
why can't any manufacturers out there produce a good 7" tube achro. for about 1500.00. also why can't they produce ca corrector auxillary lens for the cheap chinese refractors, like was done for hubbles spero aberation?

June 15, 2010 02:37 AM Forum: Refractors

then what are we missing?

Posted By thomas zukouski
roland says red ,blue violet are over 1wave out of focus, then how much resolution are we losing?

June 17, 2010 08:23 PM Forum: Refractors

sky watcher 150mm 4 lens refractor

Posted By thomas zukouski
cwy well it seems ad was in error, only two lens achromat, ad also said ajustable lens cell,was also wrong its non ajustable! recieved scope,checked it out optics seem okay but focus adjuster stem is bent .waiting for fix from o.p.t

June 20, 2010 01:44 PM Forum: Refractors

science behind focus of light

Posted By thomas zukouski
light is traveling at 186,000mps, bouncing of everything you focus on a plant 50 ft. away behind it another plant less than 2 ft. you have to refocus to see this plant ! why? light lag is so small .

Funding Member

Sponsors


View all sponsors

Search