Astrophotographers can use this lightweight star tracker with cameras up to 100mm lenses to keep stars still for up to four minutes.
Alignment method:That’s because Earth’s moving at 1,000 mph, something the SAM accounts for because it aligns with Polaris, the north star, and effectively cancels-out trailing stars. The end result is better images of the night sky that contain more stars, more nebulae — and a lot more Milky Way.
We were able to get it all in a fairly small camera backpack alongside a DSLR camera that also took a 24-105mm lens and an ultra-wide angle 14mm lens . The SAM performs admirably, creating pin-sharp stars and rich star fields during tracks of up to about four minutes. We had almost exactly 3kg on the SAM, so it was operating at its limit. However, if you’re thinking of buying the SAM then don’t just think about the weight of your camera body and the lenses you intend to use. You also have to factor in the weight of your ball head.
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