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BYN v2 Problems



My friend and mentor who uses Backyard EOS came over last night to help me with BYN v:2.0 on Windows 10

I have MacBook Pro 15" (Late 2016) with 16 GHz memory and 1TB SSD.

MacOS Mojave 10.14.1 running Parallels 14.1.0 (45387)

Nikon D750 later version firmware: C 1.10   L 2.015 I'm using Nikon USB cable.

I've purchased the Pro version of BYN

Problem 1: Camera refocuses after we either focus manually or with Frame & Focus in BYN. We focus the camera, take a test shot with Imaging & Preview and the lens is no longer focused.

Problem 2: BYN would lock up when we took a small set of sample images, the progress wheel just kept spinning until it failed.

Dave Carpenter, Colorado Springs, CO dave@dcarpenter.us


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Running any Windows Program inside an Emulator on MacOS is touchy - especially when you need the Program to have access to any Physical Hardware outside the MacBook.  Search through the Forum Threads (both BYN and BYE) for references to "Mac" and "VM" and "Parallels" for other User Experiences and Solutions.

Issues with the Lens performing an attempted AutoFocus will be tricky to track-down, but are always related to Camera Settings (in combo with specific Nikon Lens "default behaviors").  Start by looking for settings that effect Focusing Actions upon Shutter Press and "Half-Press".

Be sure to let us know what you find out...

(Note:  None of this testing needs more than the Camera and Lens sitting on the Kitchen Table with the USB Cable to the MacBook.  No need to waste precious Dark Skies time...)

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The tricky thing is that you need the lens in AF mode in order for BYN to adjust the lens via the chevron buttons. But you do not want the camera to try to autofocus as you are taking a deep sky exposure because it cannot focus on the dark sky.

One way around it is to put the lens in AF and use BYE's chevron buttons to focus the lens. Then tape the focus ring so it won't change and then put the lens into MF mode.

Another solution may be to configure the camera to move the Autofocus trigger off of the shutter button. That way BYN may not use the start exposure logic to attempt to auto focus at the start of the exposure. This is what I do to my Canon.

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