Back Home

Mission Statement








Why is filter removal needed in

astrophotography? 


All DSLR cameras have sensors which are sensitive to infra-red light. Camera manufacturers install IR filters to keep most IR energy from reaching the imaging sensor in order to maintain a correct colour balance similar to what our eyes see.  Unfortunately, these filters also attenuate hydrogen-alpha radiation which is very important for capturing the red nebulosity in astronomical photographs. A typical IR filter blocks as much as 75% of the light arriving to the chip in the H-alpha wavelength. By removing the stock IR filter or replacing it with a Baader IR filter that is transparent to hydrogen-alpha, the camera's sensitivity for astrophotography is greatly increased.



























All the cameras have been checked for dead pixels both prior and after modification. Time and weather permitting, I make an effort to test them in prime focus with my telescopes.



 











Setup B:

SW Evostar 80ED DS-pro with 0.85 SW focal reducer on a HEQ5 Pro. Guiding through a SW 9X50 finder scope and a Orion Starshoot Autoguider via an adapter from Modern Astronomy






Please fill in the form below to request any further information. I'll get

back to you as soon as I can to let you know what cameras are available.

 

Important notice: Please ignore the form below and contact me at 


juan_fierros@yahoo.co.uk


My webhost has been experiencing technical problems and the form below does not seem to be working. 

 

 

First Name:
Last Name:
Email:
Comments:
 

Cheap Astrophotography is an 'evening and weekend' enterprise because of the demands of my full-time employment. I'll do my best to fill orders and respond to emails promptly; however, please realise that there may be times when I cannot respond as quickly as I would like to. I appreciate your patience.Thank you for your custom.