|6 foot cable lets my camera stand outside while I sit at the kitchen table|
My original theory was that I would have finer control of manual focus using the EOS Utility software to make little tiny incremental changes. However, even the fine focus arrow seems to shift or stick and jump a little (could be my kit telephoto lens), but using my live focus technique I'm actually able to achieve similar results.
I think where this will really come in handy is with solar photography, because I'm unable to touch the manual focus while my DIY solar filter is over the lens. Being able to manually adjust the focus via my laptop would be a big help to focus in on those hard to see sun spots.
|Inexpensive Amazon Basics 6 foot long USB A to Mini B|
It's hard to tell whether or not the single frame is better than what I get with autofocus on the moon. The moon is very hard to shoot with manual focus because the craters don't give the same feedback as a star. By that I mean when you focus on a star the goal is to get the dot as small as possible to know that you are in correct focus. With the moon, there's no absolute way to tell on a tiny LCD screen on the back of the camera - so shooting the moon might actually be better with the camera paired to the laptop to look for incremental improvements.
|Single frame desaturated but otherwise straight from the camera, 300mm, 1/160 sec, f/8, ISO 100|
|Stack of 3 frames, high pass layer in Photoshop|