DFM Engineering, Inc.
1035 Delaware Ave. Unit D
Longmont, CO 80501
Phone: 303-678-8143
Fax: 303-772-9411

 
 
 
Telescope Optics Standard Features
 

Optics are specified and tested for image quality so 80% of incident light falls within 0.6 arc seconds.

Finish on the mirrors is 80/60 for the primary and 60/40 on the secondary.

• Focus may be manually controlled or commanded by the control system (focus motor powered only when focusing to minimize heat generation)

• Low temperature (-40 degrees Celsius) operation optical encoders

• 2-speed motorized focus with high accuracy position readout

• Invar spacers available to compensate for temperature and maintain focus (optional on 0.4M)



Telescope Optics Custom Features

 
 


OPTIONS:

• Invar spacers available to compensate for temperature and maintain focus

• Other F ratios and field sizes available

• Ritchey Chretien optics

• Field corrector