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Contains:  Gear
Samyang 135mm setup with SA and autoguiding, 





    
        

            Marcus Wögerer

Samyang 135mm setup with SA and autoguiding

Description

For those who are interested how I do my 135mm widefields with SA and autoguiding.
The setup is quite stable and very light too.
For a focal lenght of 135mm it is more than robust enough.

The small 6x30 finder (122mm focal lenght) is used together with my ASI 224MC for autoguiding.
I have nearly a 1:1 pixel situation. PHD can guide in the range of 0.1 pixel in RA !
When the balance is fine, and the polar alignment fits, I can guide with more accuracy than 1 pixel of 135mm sensor of Sony NEX sensor.
The bionett of the Sony NEX is not loaded anymore from the lens.

The distance between the rings is 123,5mm. But this is only vaid for the E-mount version of the Samyang 125mm f2 ! The Canon EF would be less ! This plate fits on my Celestron mount too.

Comments

Author

Marcus1968
Marcus Wögerer
License: None (All rights reserved)
13136
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  • Samyang 135mm setup with SA and autoguiding, 





    
        

            Marcus Wögerer
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  • Samyang 135mm setup with SA and autoguiding, 





    
        

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    B
  • Final
    Samyang 135mm setup with SA and autoguiding, 





    
        

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  • Samyang 135mm setup with SA and autoguiding, 





    
        

            Marcus Wögerer
    D
  • Samyang 135mm setup with SA and autoguiding, 





    
        

            Marcus Wögerer
    E
  • Samyang 135mm setup with SA and autoguiding, 





    
        

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Histogram

Samyang 135mm setup with SA and autoguiding, 





    
        

            Marcus Wögerer