Re: Nikon D5000 Subframe.
| Newsgroups | gmane.comp.multimedia.gphoto.user |
|---|---|
| Message-ID | <[email protected]> |
Hi Lacy, Thanks for answering. > On 09 December 2019 at 18:06 Lacy Rhoades <[email protected]> wrote: > > Can you do the HFD at a lower overall resolution and/or a higher JPEG compression setting? I can try that. Some algorithms don't work well on .jpg, such as plate-solve or star-detection (which I need to find the focus star in the first place.) But maybe I can play with that. > > I don’t think you can do essentially a sensor crop using anything specific to gphoto2. If there is some "sensor > crop" setting in your camera, again, you might find luck using --list-config but the area you’re looking at must > be in the centre of the image. You're right, it's exactly that that I'm looking for. Maybe I could crop the image with another tool, before I transfer it. > > Can you speed up the network connection? Ethernet? 12MB isn’t really so big in 2019 terms. It's not just the network, it's also other processing being done at each end. A smaller image would be faster for everything. > > I admit I do not understand your HFD goal but what does the in-built autofocus not do well already? Does it focus > on the skyline or trees when you want to focus on the sky? If so, can you change the focus points in the camera? > Just to say that Nikon etc. have spent a lot of brain on how to focus, so it’s nice to leverage that when we can. It's a DSLR body attached to a telescope, so there is no Nikon lens, just an electronic telescope focuser. Regards Steve _______________________________________________ Gphoto-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/gphoto-user