Skip to Content

Camera Lenses

Canon EF 300mm F/4L

Using A Canon 300mm Lens for Astrophotography

|Nebulae|9 Comments

If you watched my video about Comet 46P Wirtanen, you may have noticed that my imaging gear included a Canon EF 300mm F/4L USM Lens. This may have seemed a little odd to those that are used to seeing me use a telescope for astrophotography, but a camera lens like this can be a great way to capture deep sky images. Over the years, a lot of people have asked me why they should invest in a new telescope when they already own a high-quality telephoto camera lens with a comparable focal length. After all, a prime lens like the Canon EF 300mm F/4L isn't cheap, and its got some seriously impressiv…

Double Cluster

Double Cluster in Perseus

|Star Clusters|0 Comments

NGC 869 and NGC 884 Date Photographed: February 1, 2016 Total Exposure Time: 30 Minutes (60 x 30" frames @ ISO 800) Mount: Skywatcher HEQ-5 Pro Synscan Camera: Canon EOS 7D (stock) Camera Lens: Canon EF 300mm F/4L Stacked in Deep Sky Stacker Processed in Adobe Photoshop CC The clear sky chart for my area stated that the skies were to be clear for approximately 2 hours on Monday night. That was all the inspiration I needed to head out to the backyard and do some experimenting. Nights like this are perfect for trying out new techniques and equipment. Anything I…