Cameras and Lenses

My daughter and I have become very interested in learning more about astronomy and astrophotography. So, I have become interested in prosumer cameras again. Here, I compile a list of Sony and Canon lenses of interest for our reference.

We will add thoughts on specific lenses we end up collecting.

Cameras
Sony (alpha) a7R IV (Full-Frame Mirrorless)
https://www.dpreview.com/reviews/sony-a7r-iv-review
Pixel Size: 3.73 microns
Notable: III + I = IV ¯\_(ツ)_/¯
Cost: $$$$

Canon EOS Ra
https://www.dpreview.com/products/canon/slrs/canon_eosra
https://www.lonelyspeck.com/canon-eos-ra-astrophotography-review/
Pixel Size: 5.34 microns
Notable: “ISO invariance”
Cost: $$$

The Ra is the “astrophotography variant” of the EOS R. This is a full-frame mirrorless Canon camera using their RF lens mount. The Ra does not have the IR-cut filter over the sensor (sorta). It allows significantly more transmission of 656 nm light, which is a red associated with “Hydrogen alpha” or “h-alpha” that is emitted by many nebulae.
https://en.wikipedia.org/wiki/H-alpha

Lenses
Sony E-Mount

Trinity:
Sony SEL1635GM FE 16-35mm F2.8 GM Wide-Angle Zoom Lens
https://www.amazon.com/Sony-16-35mm-F2-8-Wide-angle-SEL1635GM
Cost: $$$

Sony SEL2470GM FE 24-70 mm F2.8 GM Standard Zoom Lens
https://www.amazon.com/Sony-24-70mm-F2-8-Standard-SEL2470GM
Cost: $$$

Sony SEL70300G FE 70-300mm F4.5-5.6 G Telephoto Zoom Lens
https://www.amazon.com/Sony-70-300mm-SEL70300G-F4-5-5-6-Lens
Cost: $$
Notes: This is not the GM version (note the F-stop)
GM = https://www.amazon.com/Sony-70-200mm-2-8-OSS-Lens

Primes:
Sony SEL35F18F FE 35mm F1.8
https://www.dpreview.com/products/sony/lenses/sony_fe_35_1p8
Cost: $$

Sony SEL24F14GM FE 24mm F1.4 GM
https://www.amazon.com/dp/B07HJXVHSS
Cost: $$$

Other:

Canon RF

Trinity:


Primes:
Canon RF 50mm f/1.2L USM
https://www.amazon.com/gp/product/B07H4G9ZKW
Cost = $$$$
Use = Star Landscapes; All arounder

Canon EF

Primes:
Canon EF 200mm f/2.8L II USM
https://www.amazon.com/gp/product/B07K6RWYJ5
Cost = $$
Use = Deepsky; General Telephopto