Best Lenses for Milky Way Photography: Canon Astrophotographers

The most common question asked on Lonely Speck answered for Canon shooters!

What is the best lens for astrophotography? The one that collects the most light.

Below is a list of the highest scoring lenses for untracked nightscape photography and astrophotography. The score is a direct representation of light gathering capabilities based on the formula:

Score = (aperture area) × (angular area) × (suggested shutter speed)

Where the shutter speed is the longest suggested shutter speed in seconds based on the “500 Rule” (500/focal length). Aperture area is the surface area calculation of the clear aperture of the lens and the angular area is the angular field of view in square radians. This score is a mathematical calculation based purely on some simple physics. It doesn’t account for other considerations like the lens’s build quality or optical aberrations but it’s a good gauge of overall light gathering capability.  You can also see the complete list of scores here, complete with calculations and further explanation.

All of the lenses listed here are my personal suggestions for photographers looking to get the absolute best astrophotography results with their camera. If using the given camera mount, these are the lenses that I would use. Most of these lenses are manual focus lenses by Rokinon which also tend to be much more affordable than their autofocus Canon counterparts. Additionally, most of the Rokinon lenses are sharper and tend to exhibit less coma aberration than their Canon counterparts. If you’re willing to learn how to use manual focus, Rokinon lenses are spectacular performers.

If you would like to know more about the thoughts that went into creating this list, please read my article on how to pick a lens for Milky Way photography.

EF Mount (Full Frame and APS-C)

Rokinon 24mm f/1.4 ED AS UMC
The Rokinon 24mm f/1.4 ED AS UMC is the best full-frame lens for astrophotography.

24mm/1.4: Rokinon 24mm f/1.4 ED AS UMC ( Amazon / B&H )

 

  • The best night photography and astrophotography lens you can buy. Excellently sharp, especially when stopped to f/2. Manual focus.
  • My full review of the Rokinon 24mm f/1.4
  • Score: 2869
  • This is my go-to lens for astrophotography on a full-frame DSLR. It’s fast, wide and shows very little aberration problems. Still my personal favorite for Canon full frame DSLRs like the 6D, 5D Mark III and 5DS/R cameras.
  • Sample from the Rokinon 24mm f/1.4:
rokinon-24m-f14-mt-shasta
Made with the Rokinon 24mm f/1.4

35mm/1.4: Rokinon 35mm f/1.4 US UMC ( Amazon / B&H )
or Sigma 35mm f/1.4 DG HSM Art Amazon / B&H )

  • Standard wide angle for tighter landscapes or stitching multiple exposures into larger panoramas. Rokinon is manual focus, Sigma is autofocus.
  • Score: 2084

14mm/2.8: Rokinon 14mm f/2.8 IF ED UMC ( Amazon / B&H )

Rokinon 14mm f/2.8 Review
The Rokinon 14mm f/2.8. Lots of glass for the money.
  • Essential ultra-wide angle for large sweeping landscapes. Manual focus. One of the most affordable full frame nightscape lenses.
  • My full review of the Rokinon 14mm f/2.8
  • Score: 1032
  • Sample image from the Rokinon 14mm f/2.8:
Canon-EOS-6D-Review-6
Made with the Rokinon 14mm f/2.8

 

EF-S Mount (APS-C Only)

Rokinon 16mm f/2.0 AS UMC CS
The Rokinon 16mm f/2.0 offers the best combination of wide field of view and large aperture for astrophotography with APS-C DSLRs.

16mm/2.0: Rokinon 16mm f/2.0 ED AS UMC CS ( Amazon / B&H )

  • The best combination of wide angle and large aperture. Manual focus.
  • Score: 1875

10mm/2.8: Rokinon 10mm f/2.8 ED AS NCS CS B&H )

  • APS-C alternative to the Rokinon 14mm/2.8. Excellent for ultra-wide angle landscapes. Manual focus.
  • Score: 1184

11mm/2.8: Tokina 11-16 f/2.8 AT-X PRO DX II ( Amazon / B&H )

  • Covers the same range as the two previous lenses combined. Excellent super wide angle zoom with autofocus.
  • Score: 1149 (at 11mm)

EF-M Mount (APS-C Mirrorless)

12mm/2.0: Rokinon 12mm f/2.0 NCS CS ( Amazon / B&H )

Rokinon 12mm f/2.0 NCS CS on Canon EOS M
The Rokinon 12mm f/2.0 my favorite lens for astrophotography on a mirrorless system. It’s both fast and wide and it’s very lightweight and compact in size.

 

  • Best lens for astrophotography on a mirrorless system. Nice and compact, best combination of super-wide field of view and large aperture.
  • Score: 2176
  • Sample image from the Rokinon 12mm f/2:
Rokinon-12mm-f2-NCS-CS-Review-Thumb-24
Made with the Rokinon 12mm f/2

22mm/2.0: Canon EF-M 22mm f/2.0 STM ( Amazon / B&H )

Canon EOS M
Canon EOS M and Canon EF-M 22mm f/2.0 lens
  • Surprisingly sharp and extremely compact lens. Also very cheap. Standard wide angle view makes it good for panorama stitches.
  • Score: 1505
  • Sample image from the Canon EF-M 22mm f/2 STM:
IMG_9682-Edit2-2
Made with the Canon EF-M 22mm f/2 STM

8mm/2.8: Rokinon 8mm/2.8 Fisheye II ( Amazon / B&H )

    • Ultra wide angle fisheye that both fast and extremely wide. Fisheye distortion requires you to keep the horizon in the center of the frame unless you want a curved horizon.
    • Excellent when defished.
    • Score: 1237
    • Sample image from the Rokinon 8mm f/2.8 Fisheye:
Alabama Hills Workshop
Made with the Rokinon 8mm f/2.8 Fisheye

235 Replies to “Best Lenses for Milky Way Photography: Canon Astrophotographers”

  1. Hi Ian! I took it upon myself to purchase the Rokinon 16mm f2.0 last week. I am very impressed with the sharpness of this lens. Manual focus is going to take quite some time to get used to. For now I am just using the infinity focus. I went out last week to take some night shots for the very first time and got some pretty good shots. Just wish I could post them here for you to look at and let me know what you think. Great website btw!

    1. If you upload to a service like 500px, Flickr, or imgur, you can share a link here.

  2. Hi Ian!
    I am a little overwhelmed and not very experience with all the info and technical jargon regarding lens choices. I hope you can help me choose the right lens for my camera.
    I have a Canon 70D with standard kit lenses. Could you recommend the best Rokinon lens for this camera? Preferably something for not only astrophotography, but also landscape photography.
    Thanks in advance!
    Terry

  3. Hi, Ian. Thank so much for your review. I am going to Morocco and want to photograph the night sky while in the desert. I have a 6D and am vacillating between the Rokinon 14mm w/ the AE chip or the Tamron 15-30mm. Have you had a chance to try the Tamron yet? I’d be interested in hearing your thoughts on which lens might be a better choice. Thanks!

    1. I haven’t tried the 15-30 yet but I think if AF is something you usually desire, then go for the Tamron! It should be a great lens for Astrophotography.

  4. I see there is also a Rokinon 16mm lens on Amazon. Have you used this lens? If so, can you update this article to include it?

    Thanks!

  5. Wow, you know so much on this subject. I’m so new it hurts, but I want to capture the stars and I’m considering buying my friends Canon Rebel t3. She says it won’t get the stars on its own, but paired with a lens it could. Can any of these lenses you mention pair with a rebel t3, and be budget friendly? Thanks in advance for sharing and your love of this subject.

    1. You can get it to work. I usually bring a friend out when I go for some astrophotography. He gets better shot with borrowed lenses from me (Samyang 14mm and others), but even with his kit lens, he gets away with usable pictures. You would not want to go slower than F4, and you will not have a lot to do about using rather high ISO compared to other cameras, but still, you can get away with using a camera like that.

      A 20-30 sec exposure at f4, taking test shots to balance the ISO.

  6. Have you tried the Rokinon 12mm F2.8 Super Wide Angle? I’d think this would score a bit higher than the 14 as long as CA is controlled.

Leave a Reply to Bill Cancel reply

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.