2006 Ford Focus Heater Control Switch

[111 lb] The zoom is smooth and within reach. Added bonus of having the switch to control focus using the thumb lever.

[f/2] I have been doing astrophotography since 2006 through various telescopes. Just started doing it with my EOS 70-200mm f2.8L IS II which works well. The Samyang 135mm f2 blows it away. Pinpoint stars to the frame edges wide open. Very crisp images. I have read complaints about difficulty focusing this lens. You just need patience. I use software FWHM focus assist and it takes me a few minutes to get to the minimum values. It takes a very very small movement of the focus ring to go from excellent to bad focus. Once focused, I notice no noticeable thermal contraction related focus drift throughout the evenings even with an ambient temperature drop of 30 deg. F. The attached image is a single autoguided 10 minute calibrated frame using a ZWO ASI2600MC through an Ha filter. I highly recommend this lens as well as the Astrodymium Ring System for Rokinon/Samyang 135mm Lens.

[3.7 x 3 x 0.6"] Love to be able to control my focus on the movi or on my jib.

[0.8 MOD] I use this to switch focus between two actors and it works great as expected.

I use this to switch focus between two actors and it works great as expected.

[Silver] Great lens!!! Love the manual focus switch!!

[White] I added a 6 port volume control switch to use the amp in multiple rooms and outside

[0.805 lb] The Neewer 19.7 USB Lens Heater works nice.

[1.235 lb] Works great, ground left switch when needed as well as suffer volume control when needed.

[0.375 lb] Few options for this size that has ground switch and gain control - this does great and it's solid.