How to Photograph a Lunar Eclipse

I intentionally waited on posting this article on how to photograph a lunar eclipse until it actually took place on 12/21/2010, because I wanted to document my experience and provide information on what challenges I had during the process of photographing this rare, but stunningly beautiful phenomenon. This was not my first time trying to photograph a lunar eclipse – I tried it once back in 2008, but the weather did not cooperate back then and I did not get any good pictures. My luck was much better this time and although the sky was not completely clear, I was still fortunate enough to capture the entire process, from full moon to total lunar eclipse, then back to full moon. The next lunar eclipse will occur in the summer of next year, so if you missed it this year, definitely try to get out and take some pictures, especially when the moon turns bloody red.

Total Lunar Eclipse of 2010

1) Basics of Moon Photography

Before reading the information below, I highly recommend reading my “how to photograph the moon” article, where you can find plenty of information (including camera settings) on how to photograph the moon. You will need that while capturing the beginning and the end of the eclipse, when the moon is partially lit by the sun.

2) Photographing the Sequence

One thing you need to decide on, is whether you want to shoot the entire sequence of the lunar eclipse, or just the middle of the process (period of totality) when the moon is orange/red in color. I would personally recommend to document the whole process from the beginning to the end, so that you have pictures of the full moon, then a partial eclipse, then a total eclipse, then a partial eclipse again, returning back to full moon when the eclipse ends. The nice thing about having the entire sequence in pictures, is that you can later combine images together like this:

Total Lunar Eclipse Sequence

You will have to be very patient though – it took me about four hours in total to capture the moon from the beginning to the end of the eclipse. The night was very cold (below freezing) where I live and although I wore very warm clothes, I had to run home back and forth to get warmer. Thankfully, I did everything right outside of my home and did not have to drive anywhere far. There was plenty of light pollution in the sky, but it did not seem to impact my images as much, so you can certainly do it from right where you live too.

If for whatever reason you cannot stay for the entire duration of the eclipse, I would just stay for the total eclipse to capture the moon when it is red.

3) Camera Equipment and Lenses

When it comes to photographing a lunar eclipse, the type of equipment you are using plays a huge role. Photographing a lunar eclipse is not the same as photographing the moon for one major reason – lack of light. When you photograph the moon while it is lit by the sun, it is typically so bright, that you can easily use fast shutter speeds at very low camera ISO, without having to worry about noise. Photographing a lunar eclipse is much more challenging, because the moon gets very dim when it is in the Earth’s shadow. Not only will you have to decrease your shutter speed, but you will also have to increase camera ISO to a much larger value, especially if you are shooting with long lenses above 300mm. Having a good DSLR that can handle noise at high ISO levels will certainly help.

When it comes to lenses, longer lenses will magnify the moon more and provide some good details for your shots. So, unless I am capturing the moon with a large foreground element, I would use my longest lens in my arsenal. But a longer lens presents another problem for moon photography – you will have to use a fast shutter speed to get blur-free images of the moon, since it moves so fast (see below).

4) Camera Settings

When you shoot a bright moon, a good exposure is typically around 1/125-1/250th of a second @ f/11, ISO 100-200. When an eclipse starts, this exposure will work great to expose the bright part of the moon, while the dark side of the moon is not going to be visible at all. At some point, you will have to change your exposure to expose for the dark side, while overexposing the bright side of the moon, similar to this image:

Exposing for the dark

I found out that the exposure difference between the bright and the dark sides was a whopping 8 full stops! What does this mean? It means that if you were getting a great exposure of the sun-lit moon at 1/250th of a second at ISO 200, in order to capture the part of the moon that is in earth’s shadow, you would have to shoot at 1 second @ ISO 200 (1/125, 1/60, 1/30, 1/15, 1/8, 1/4, 1/2, 1)!

This is the part where the focal length of your lens becomes your enemy. The longer the lens, the more you need to worry about two major problems – shutter speed and camera shake. A long lens (above 300mm) will make the moon larger in your picture, which at the same time means that the moon will move very quickly through your frame. Using a slow shutter speed is obviously unacceptable, because the moon features will all appear blurry. Therefore, your only choice is to shoot at maximum aperture and increase camera ISO to a large number. In the above example, to increase my shutter speed to just 1/15th of a second, I would have to shoot at ISO 3200, which would result in a lot of grain, especially if I were shooting on a DX camera. So, what should your shutter speed be? It depends on the focal length of your lens. If you are shooting at 300mm on a DX body using a lens like the Nikon 70-300mm VR, shoot at shutter speeds faster than 2 seconds. If you are using a longer lens, you will have to use even faster shutter speeds to get a blur-free image of the moon. I was shooting at 560mm (Nikon 200-400mm @ 400mm + 1.4x TC) on a full-frame body (Nikon D3s) and I found that my limit was about a half a second (1/2) before the moon started to get blurry.

Take a look at the below crop shot at 2 seconds to see how blurry the moon got:

2 Second Exposure at 550mm

2 Second Exposure at 550mm

And that’s with me shooting on a tripod using a remote shutter release, plus Mirror Lock-Up with about 1 second interval after raising the mirror! Let’s talk about camera shake for a second. Whenever you shoot with long lenses over 300mm, you have to make sure that you have a very stable setup. It goes without saying that your camera needs to be mounted securely on your tripod and you should not be pressing the shutter with your hand. Use a remote shutter release and switch to “Mirror Lock-Up” shutter release mode, if your DSLR has it – it will certainly help in minimizing camera shake. Oh, and don’t forget to turn off Image Stabilization/VR when your lens is mounted on a tripod.

The biggest challenge, however, was not when I was taking pictures of the half-lit or quarter-lit moon – it was when I was photographing a total eclipse, when the moon was in Earth’s umbral shadow. Depending on how bright the moon appears during this phase, you will have to adjust your exposure accordingly. Keeping my aperture between f/5.6 and f/8.0 and shutter speeds above 1/2 second, I had to increase my camera ISO to 1600 and sometimes even 3200, which added plenty of grain to my images, but at least the images were not blurry.

5) Focus Accuracy and Sharpness

No matter what lens you are using, getting a very accurate focus on the moon is extremely important. I know that some of you might suggest to shoot at infinity, but since many lenses now allow focusing “beyond infinity”, getting a true infinity focus is not that easy – a slight inaccuracy in focus will make the moon appear blurry. While using your center focus point to acquire focus might work fine when the moon is lit by the sun, your autofocus will most likely cease to function or might be grossly inaccurate when the moon is very dark. If you have a DSLR that has a LiveView mode, then certainly use it to get a much more accurate focus. I had some challenges with AF when using LiveView on my camera though – LiveView was severely overexposing the moon, which made it impossible to autofocus, even though I was shooting in Manual Mode. The workaround was to press the “OK” button on the D3s (which switches LiveView to true manual mode), then rotate the back dial to increase my shutter speed. This way, I was able to properly expose the moon and AF worked great after that.

Instead of dealing with refocusing every time you take a picture, I highly recommend to switch off autofocus once you get an accurate focus on the moon (preferably before the lunar eclipse). Take a picture and use the LCD screen of the camera to see how sharp the moon is. Zoom in all the way and make sure that the moon appears sharp. If it is not, go back to LiveView mode and retry. If you cannot manage to get your camera to autofocus in LiveView mode, try manually focusing with your hand while zoomed in all the way in LiveView. If you get a good focus before the Moon goes into the Earth’s shadow, you won’t have to touch your focus until the end of the eclipse.

One more thing I would like to point out, is if you are using a lens with a teleconverter, or if you are using a consumer zoom lens, the optics are probably not very sharp when shooting at large apertures. Stopping down the lens aperture to f/8-f/11 should give you the sharpest results. Don’t use apertures larger than f/11 – diffraction will kick in and make the moon appear even softer.

6) Moon Movement Speed

So far I mentioned several times how fast the moon moves when using long lenses. Take a look at this video and see for yourself where the moon starts in the frame, and then ends up at the end of the 2 minute video. If you are impatient, simply look at the beginning of the video, then the end and compare the location of the moon in the frame:

Now just think how many times I had to move my camera to photograph a 4 hour long eclipse!

7) Composition

Unless you are shooting at short focal lengths with a foreground object or some sort of a scene, don’t worry about composition – place the moon anywhere in your frame. The location does not matter, since you can easily crop the moon out in post-processing, as long as the moon is exposed properly. I often tried re-centering the moon in my frame, but as you saw from the above video, it was rather difficult to recompose every time. At the end, I ended up starting with the moon on my top left corner frame and let it move towards the right bottom corner. When it approached the bottom, I would move it back to the top left again.

If you want to have stars with the moon in the final picture, the best way is to shoot starts separately at several seconds, then combine both images together. If you want to have a composite image like the vertical one I posted in this article, then your best bet is to photograph a night scene separately with a wide-angle lens, then use Photoshop to copy-paste the moon into the image.

6) Post-processing

The post-processing method I use for the moon is described in detail in my “how to photograph the moon” article. For the total lunar eclipse, the bigger problem is going to be dealing with the noise due to high ISO levels. If noise is an issue, see my “noise reduction tutorial” that I posted a while ago – there are plenty of tips in that article on how to clean up noise in Photoshop and Lightroom.

As for doing composite images (combining the various phases of the moon with other images), the process is not that difficult. Here is how I recommend doing it:

  1. Pick a couple of photos with a dark sky, obviously shot at night.
  2. Open your moon photos and using the “Magic Wand” tool, select just the moon by itself. Play with the “Tolerance” level and make sure that you are grabbing the whole moon, not just parts of it.
  3. Copy the moon by pressing CTRL+C/Command+C
  4. Paste it into a corresponding image with a dark sky.
  5. If the moon you copied has some black edges to it and your sky is not totally black, then try this trick: select the moon once again with the Magic Wand, then right click the moon, choose “Select Inverse”, then right click again, choose “Feather” and give it 2-3 pixels. Next, click on the “Add a Mask” button on the layers palette. Once this is done, click on the Mask itself in the layers window, then click “Apply Mask”. Repeat this process several times, if necessary, to make the edges of the moon smooth.
  6. Experiment with copy-pasting several phases of the moon and see how you like the final image.
  7. Don’t forget about sharpening the moon. Do it before selecting the moon with the Magic Wand, otherwise the sharpening tool will also sharpen the edges of the moon.

Photographing a total lunar eclipse was a great experience for me. I highly recommend getting out and trying it next summer!

Comments

  1. 1
    ) Tom
    December 23, 2010 at 4:44 pm

    Excellent shots Nasim! and great article, thank you.

  2. December 23, 2010 at 4:58 pm

    The composite you created for the middle photo is incredible!

  3. 3
    ) Yash
    December 23, 2010 at 5:25 pm

    Nice shots and very well explained!!!

  4. December 24, 2010 at 1:39 pm

    Excellent creativity with your Photoshop work. I also photographed the Eclipse with almost the identical setup as yours…but I only shot the sequence between 3:15 AM and 3:56 AM EST. I was quite pleased with my shots.

    • January 6, 2011 at 9:54 pm

      Thank you Dave! Looks like you travel to Russia quite a bit? :)

      • January 7, 2011 at 8:28 am

        Actually, I have only been to Russia twice. The first time was during a Baltic Cruise in 2003 that spent 2 days in St. Petersburg. This trip (August-September) was a Russian River Cruise on the Volga which took in St. Petersburg, Moscow and a few villages in between. It is a great trip which I would recommend to anyone that really wants to get a good overview of Russia and it’s interesting history.

  5. 5
    ) Simran Puri
    December 26, 2010 at 9:39 pm

    Brilliant Shots, only superseded by the tutorial. Great work and thanks for sharing.

    – Simran.

  6. December 27, 2010 at 2:37 pm

    Thanks for the excellent tutorial, and the images of the eclipse are superb! I will recommend this tutorial to my readers.

  7. 7
    ) James
    December 31, 2010 at 7:24 am

    I am also based out of Denver and got some very great photos, even though there was some cloud cover. I was using my Pentax K-7 attached to a 1100 mm (1650 w/ crop factor) f/8 ( my telescope ;) ) Great detail the moon filled the entire frame! I just found and started to read your articles today. I am not in country very often but was thinking of joining a photo club or something to share photo tips and be inspired from, any suggestions?

    Thanks and great articles,

    James

    • January 6, 2011 at 9:56 pm

      James, you probably got some killer shots with your telescope there! Would love to see your shots!

    • January 6, 2011 at 9:58 pm

      James, I don’t really participate in any of the official clubs here, except some local gatherings with friends and some other photographers, but looks like Dave below provided some suggestions…

  8. December 31, 2010 at 8:07 am

    James, there are some excellent camera clubs in Denver. Here is a link which lists a number of clubs near you: http://denverphotosociety.org/DenverClubs.html I also might mention the Mile High Wilderness Photography Club which you can learn about here: http://www.mhwpc.org/ My daughter and granddaughter live in Littleton so I am quite familiar with your area. I get out their to visit and make photos every couple of months. Good luck.

  9. 19
    ) James
    January 7, 2011 at 8:59 am

    Thank you very much.

  10. 20
    ) Adele
    January 20, 2011 at 11:10 pm

    Anyone got tips on how to photograph star trails ?

    • February 22, 2011 at 2:05 pm

      Adele, you would have to use a very long shutter speed to be able to do star trails. You will need a remote camera release and set your camera to BULB mode in order to be able to go beyond the 30 second limit.

  11. February 18, 2011 at 4:02 pm

    I use your picture lunar eclipse on my mythology (moon section) with a link to your site. I hope you don’t mind. Let me know if so.
    here the link :http://pierdelune.com/page6b.htm
    Thanks

    P.S. I am a fan of your site.

    • February 22, 2011 at 2:06 pm

      Pierrette, no I do not mind at all, as long as the link is provided (and you did).

      Thank you!

  12. 24
    ) Loredana
    May 24, 2011 at 5:40 am

    Thank you very much for the indications. I plan on using them at this summer’s eclipse.

  13. 25
    ) ant
    June 14, 2011 at 1:03 pm

    Thank you for all the info! We are in the middle of nowhere. and tomorrow night we have a full lunar eclipse… I am planing to go and challenge the cold winter air, and hopefully the skies will be clear!
    Thanks a million for sharing your information x

  14. June 21, 2011 at 7:04 pm

    What happened in universe see it through my eyes…
    http://www.dudhwalive.com/2011/06/lunar-eclipse-through-my-eyes.html

  15. 27
    ) Phil McGrew
    December 8, 2011 at 1:37 pm

    I just wanted to say thanks for an outstanding writeup of your eclipse experience. I am doing research for the eclipse this weekend and found your information incredibly helpful. I wish you many clear eclipses in the future!

  16. December 10, 2011 at 2:12 am

    Completly missed the 2010 eclipse, seen from Provence, will try to do better this time thanks to you detailed tutorial. Will try with the D700/500mm on tripod. Peter

  17. 29
    ) Scott
    April 19, 2012 at 6:24 pm

    Do you have recommendations on how to photograph a solar eclipse (on May 20, 2012 for those in/near the Pacific) or transit of Venus (on June 5/6, 2012), in addition to never, ever looking at the sun directly or through a viewfinder?

  18. 30
    ) Behzad Moghaddam
    October 13, 2013 at 3:37 pm

    I and my friends are professional photographers who have started to do astrophotography. In the upcoming week, there’s a lunar eclipse on Oct. 18 that I and my friends want to try our first experience on Time-lapse photography of a lunar eclipse. I was searching on every website related to photography, but I couldn’t find one as well as yours. Thank you for your simple, but full of hints explanation. I also had a question that I appreciate you if I have your answer.

    We are going to shoot the Time-lapse photography of lunar eclipse with a 6″ Newtonian telescope (apperture: 150 mm, focal-length: 750 mm). As you can see, the f number for our telescope is 5. Since the eclipse will be full and it will take approximately 4 hours, how many times do you suggest me to change the exposure during the whole lunar eclipse? As I figured out in your text, I should not only change the exposure, I should change ISO too. Supposing it will be a clear night, with no light pollusion (suburbs), can you suggest me a step-by-step guide for camera settings (exposure, ISO) during the whole lunar eclipse?

    Thank you,
    Behzad Moghaddam,
    BHB Group.

  19. 31
    ) Ron Caballero
    March 27, 2014 at 2:04 pm

    Thanks for your great articles. I just found them. Among other things, I am an instructor of digital photography at the College of Southern Maryland (www.csmd.edu). Some of my students and I will be gathering to shoot the April 15th, 2014 eclipse. This will will be a learning time for me to allow me to come nearer to perfection in October.

    This will be, for me, at attempt to use my Time-Lapse Photography skills in a new way. In this case, I will be using a motorized, equatorial mount to permit the use of a telephone lens and hold the moon in a stationary position in the viewing frame.

    I have no trouble getting great single shots of the moon. My concern here, however, is the changing light from the moon during the eclipse. As you are aware, I will be unable to change the light settings during the several hour time-lapse. I am wondering if I should over-expose the moon before the eclipse begins so that i can get good shots during the period of total eclipse. Guidance from any and all will be of great benefit to me and to my Time-Lapse Photography students. Thank you.

    Respectfully,

    Ron Caballero
    RonCaballero@Wildblue.net

    Btw…I am planning to do a time-lapse shoot of the Total Solar Eclipse in 2017.

  20. 32
    ) Marie Fullerton
    April 14, 2014 at 8:43 am

    Your photography is incredible! Thank you for taking the time to write this fine tutorial.
    I have a question: In post processing the second picture, you cut and pasted the moon 18 times onto the mountain photograph. How did you get them into a perfect arc? Did you just eyeball them in, or did you have a precision guide of some sort?

  21. 33
    ) Sumeet
    September 13, 2014 at 8:03 pm

    Thanks for the article. its very helpful as i plan to photograph my 1st lunar eclipse on Oct 8 2014. I am planning on using EF 300mm f/4L IS USM lens. let me know if that should sufficient. or would EF 100-400mm f/4.5-5.6L IS USM be a better bet? Let me knmow

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