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Astro_Chroma
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Imaging with the Samyang 135mm f2
in Getting Started With Imaging
Posted · Edited by Astro_Chroma
This thread has been SO HELPFUL for me. THANK YOU.
I am currently putting together my Samyang 135mm for wide field astrophotography as well. I purchased the Hyperpod. While it is a great design, the guide shoe mounts are not sturdy and both snapped while I was barely tightening the screws to hold my guide scope and ASIAir Plus. To fix this issue with the guide shoe mounts for the guide scope, and ASIAir Plus, I used the guide shoe from the ASIAir Plus and EAF bracket that came with the EAF to secure it to the HyperPod. It works flawlessly (see attached pictures).
Regarding the EAF backlash, I currently have my set at 150; step limit is 6900; course step is set at 50 (will decrease this to 20-25 for fine step).
The way I have my EAF positioned on the Hyperpod, I run the EAF in reverse (as suggested by Adrenaline). See attached pictures.
Regarding OSC spacers/adapters, I really like the Play One Poseidon-C Pro (IMX 571 sensor). Though, I would be switching to NINA to use this camera as it is not compatible with the ASIAir (duh...🙄). If I were to go with a ZWO camera, I think either the 533 but more so the 2600mc pro (which is comparable to the Poseidon) would be best as I want to utilize a large fov for widefield imaging. This dilemma is driving me crazy as I am also considering an astro-modified Canon RP. Any input would be helpful.
Regarding back focus (44mm required for the Samyang):
I think you're able to go over the standard back focus of 44mm with the Samyang by bit, as the ZWO t2 adapter for the lens intended for users to use a 2" filter.
I hope this helps.