Getting Started in Astrophotography

Astrophotography sounds exotic, maybe even a little aloof, like something NASA requires of only the most highly trained astronauts. However, astrophotography is simply photography aimed at capturing the deep night sky. If you've ever gazed at a particularly striking phase of the moon or a conjunction of planets, wishing you could capture the moment, you can! The proper equipment and a bit of preparation are all you need to get started.

 

While astrophotography might seem like an expensive choice for a would-be enthusiast, in fact it can often be undertaken with relatively little expense, especially if you plan to focus on photographing objects within our own solar system (i.e., planets, the moon, etc.) Deep space astrophotography does require an equipment upgrade, but trying more basic astrophotography allows you to decide whether or not it's worth the investment.

 

Although focusing on objects in our own solar system might sound relatively dull, it can, in fact, be just as fascinating as deep space astrophotography. Even an event as relatively common as a lunar eclipse takes on new dimensions when seen through the camera lens.

 

In astrophotography, changes in the atmosphere or factors like volcanic eruptions, which force ash into the stratosphere, can affect the colors and brightness of each event.

It may surprise you to discover that the old 35mm film camera gathering dust in your closet is likely well-suited to your new hobby. Most digital point-and-shoot cameras lack the main necessity for astrophotography: an ability to keep the shutter open for long periods of time.

A camera that is battery-friendly is a must as well, since the camera will remain on for long periods of time. For all these reasons, not to mention cost, a film camera is often the best choice for a beginning astrophotographer.

 

However, if you decide to pursue a digital astrophotography course, a digital single lens reflex (DSLR) is your best option, artistically speaking. The digital sensor can record greater detail than film and also offers the ability to instantly evaluate the images you capture. Since DSLR cameras can take beautiful pictures over a shorter period of time, there is less likelihood of a man-made object, such as an airplane, ruining the exposure.

 

The main drawback with DSLR cameras is their price. A typical high-quality DSLR costs several hundred dollars more than a film camera. However, since you save on film purchase and developing fees, you might break close to even if you become an avid astrophotographer. The price for these cameras ranges from approximately $300 to $800.

 

Another camera option you might want to explore is the Web cam for astrophotography. Some Web cams can be modified to perform the extended exposures astrophotography requires. The camera and modification together cost about $80. You will probably want to invest in a flip mirror to help you get objects on the screen. The mirror costs about $150.

 

Besides the right camera, a tripod is an absolute must. Although adjustability is the key feature you're looking for, other must-haves are:

The correct mount, when using a film camera, can cost up to $10,000.

 

Since the digital revolution in cameras began, few film types remain that are suitable for astrophotography. The best tend to be slide films, such as Ektachrome E200®.

 

No matter what digital camera you choose, you will want a telescope for most astrophotography, which helps the camera see through the atmosphere more clearly. It should have a sturdy mount, large openings, vibration-free focusing and tracking ability, especially for planetary photography. You will also need a remote shutter control so the image isn't blurred by you depressing the shutter button.

Of course, in the digital photography world, the image straight from the camera is only the beginning of the final photograph. Special astrophotography software is expensive and usually not necessary for a beginner. The image-editing software you might already be using, such as DarkFrame or IrfranView, both free, can be perfectly appropriate for someone just beginning in astrophotography. As long as the software can stack images to simulate a long exposure and convert your files to the format you want, you don't need to invest in advanced software until you achieve more expertise in your new hobby.

 

Once you begin to develop further expertise in your new hobby, you may find additional investments well worth the price. However, until then, you can get great results with relatively little expense.

 

 

Astronomy by Frank (2007). Getting Started in Astrophotography. Retrieved January 22, 2008, from the Astronomy by Frank Web site: http://www.my-spot.com/astrophotography.htm.

Deans, Paul and Alan M. MacRobert (2008). Observing and Photographing Lunar Eclipses. Retrieved January 22, 2008, from the Sky and Telescope Web site: http://www.skyandtelescope.com/howto/astrophotography/
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