Posts Made By: Wesley Higgins

Hi Robert,

Thanks, with Jupiter so small now it takes even better seeing to get a fair image, I hope you get some good seeing again at least one more time for Jupiter this season.

Wes Higgins

Hi Tom,

Great to see you posting again, I hope you get time to do some imaging soon time under the stars is well spent

Thanks,

Wes Higgins

Hi Alan,

Excellent image, I am going to miss seeing your Jupiter images they are among the best I have seen, hopefully next year you can find a way to get around the wires and tree tops.

Thanks,

Wes Higgins

Hi Robert,

Thanks, the ROI feature keeps the same image size with just a smaller area around it, with Mars so small there is plenty of room for tracking
even with a smaller area. I recently installed a slower guide rate chip and I think I could get by with a smaller region for maybe 90fps.

Wes Higgins

Hi Ido,

Actually the exposure time can not be any longer than the frame rate so faster frame rates will naturally have shorter exposures which helps a little in freezing the seeing but the biggest benefit IMO from faster frame rates(assuming uncompressed video) when imaging the moon or planets is that you are sampling the seeing more times in a given time frame and your chances of getting good frames increases.
If you take 100 seconds of video at 10fps and the seeing allows maybe 10% of the frames to be usable you will have 100 good frames but if you are imaging at 30fps and 10% then you could end up with 300 good frames I say could because it can vary a great amount but IMO on average your chances of getting good frames goes up along with the frame rate.
Something else I have noticed is that if the seeing is poor then higher frame rates will make little or no difference but with average to good seeing I have found higher frame rates to be beneficial, other factors are involved in it too such as if your scope aperture can support faster frame rates (enough light) that is one reason I chose an 18" scope.
After saying all that though the seeing is still the most important factor regardless of what frame rate you are using.

Thanks,

Wes Higgins

Ido Bareket said:

Hello,

Does the FPS has a big affect on the image quality?
I know that the exposure time has to be increased with the FPS rate but does a 10FPS has better information then a 25FPS in it?
I use a SAC7B camera.

Kind regards,
Ido.

Hi Paul,

Wonderful images I like those transits I saw a triple a few years ago.

Thanks,

Wes Higgins

Hi Jim,

What size is the file you are trying to run in Registax if it is over 1GB that may be the problem, I convert my Seq. files to AVI in Streampix using a Lead (brand name) compression CODEC which is a basically lossless compression algorithm and the files work fine in Registax V3.

Wes Higgins

Robert,

Thanks!,I got the experimental model back in 1975 I use the DMK because my Lumenera is a color model and I prefer to image the moon in B&W (the DMK is B&W) plus the mono DMK uses all the pixels in 640x480 resolution.

Wes Higgins

Robert Heffner said:

Wes, excellent image!!

I know what you mean about the low altitude, I tried some lunar imaging the other day - first time in about a year - however at 27 degrees above the horizon the seeing was rough.

Is the DMK better on lunar shots than the Lumenera btw?
Also, I didn't know they had the DMK available back in 1975.... (just being silly with that last part)

Hi Mike,

That is a very unique image, it's kind of spooky looking I almost expect to see a witch flying by on a broom

Wes Higgins

Hi Paul,

Not bad at all for your first one with the Lumenera especially with the size of Jupiter now and the lower altitude, it's been my experience though that it is easier to focus with a fast frame rate.

Thanks,

Wes Higgins