This is the setup for my new portable rig. My goal was to have a 135 mm set up with my astrogear that would be able to autofocus. The ability to autofocus without being said, especially at F2 to 2.8 where I normally have this lens stopped down, is really important to limit distortion at the edge of the image. 

The pics are with it riding on an Celestron AVX mount for a portable grab and go setup for me compared to my  Celestron CGX. However, I can easily mount this on my CGX or my sky watcher star adventurer pro set up guiding in RA only.  Further more, I may in the future run this rig in a more compact form (with only the asi air and no guide scope or laser) on the top rail of my rasa or 9.25 set up

The rig is built around Astronetics ZWO EAF & ASIAIR Mount for Samyang/Rokinon 135 Lens - Version 2 from agenaastro. While a 3D printed part, the metal bolt receivers and nuts really add to the durability. I had an initial crack in one of the 3D printed parts and quickly received a replacement free of charge from agenaastro. The polar align and autofocus routine integrated with the asi air pro have really made the rig shine. 

My only hiccup initially was that the eaf would could past the infinity stop of the lens when initially completing an autofocus routine. This was solved by switch the EAF to only go in one direction and have had no further problems. 

I also have the "death star aray" with the laser on top for my rig when I mount it on the star tracker as it means easier initial framing of targets. After initial framing, I plate solve until I get the right preselected area with a non go to mount set up.  

I utilized by ZWO EFW from my 9.25 edge set up on this rig with great effect. The only "spacer" is the cannon to m42. This plus the EAF and 6.5 mm of back focus gives the requisite back focus for 135 mm and the 50 mm Rokinon lens. 

Here are a fee of my images so far with the rig:  Rosette to Christmas Tree Nebula ,  Heart and Soul ,  and  Seagull Nebula and Thor's Helmet.  While not with the EAF, here is my RHO Ophiuchi Complex  in OSC with 135 mm on the star adventurer pro.

Hope this all make sense and feel free to ask me any questions. 

CS! -Brandon


Gear List: 
Imaging Lens: Rokinon 135mm f/2.0
 Imaging Cameras: ASI 1600 MM Pro - Cooled
Guide Scope: ZWO 30 mm 120 focal length mini guide scope 
Guiding Camera: ASI ZWO 290MM
 MountsCelestron AVX
 Accessories· ZWO EAF · ZWO ASI AIR Pro · ZWO EFW 8 1.25"
Adapter:  ZWO Canon EOS Lens Short Adapter for Electronic Filter Wheel # EFW-EOS-II