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Old 26th November 2017
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Another Moon shot

From earlier this evening, 30 stacked exposures.
Tokina 300 f/2.8 and two stacked x1.4 converters.

Approaching First Quarter by Huw Prosser, on Flickr

Thanks for looking in
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Old 26th November 2017
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Re: Another Moon shot

That's magnificent Huw. Who said you weren't supposed to stack converters!
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Old 26th November 2017
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Re: Another Moon shot

Fabulous detail Huw...............
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Old 26th November 2017
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Re: Another Moon shot

That's great Huw. I tried to take a few shots last night myself but wasn't happy at all with them. Not a patch on this one of yours. Must try harder!
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Old 26th November 2017
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Re: Another Moon shot

Super shot. I must try the stacking technique. As it happens, I did take a pic last night as well, but only to set up the alignment of my EE-1 dot sight.
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Old 26th November 2017
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Re: Another Moon shot

Thanks for your kind comments Phill, Mark, Paul and Mike.

I had another go, First Quarter this evening, this time using the 300 f/4 with the MC-14.
Manual focus and sat on my lightweight Sirui tripod instead of my usual Velbon. 29 stacked exposures.

First Quarter by Huw Prosser, on Flickr
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Old 26th November 2017
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Re: Another Moon shot

Are you throwing out the Tokina now Huw..

Oly 300mm works very very well.
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Re: Another Moon shot

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Originally Posted by MJ224 View Post
Are you throwing out the Tokina now Huw..

Oly 300mm works very very well.
In a practical sense I guess it could be considered surplus to requirements but it works so well with stacked converters, even the x1.4 Canon and x2.0 Tokina work well together for Moon shots.
I also occasionally use it for wildlife as it can produce excellent results. I purchased it from Ffordes 'new' old stock a few years ago and it's still mint, lovely bit of kit but heavy
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Old 30th November 2017
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Re: Another Moon shot

Hi Huw,

I notice that your Flickr images are tagged with 'Registax'. I've had a first attempt at stacking moon photos with this software (ver.6) but did not see much improvement from the stack. On the other hand, I tried using 'CombineZP', which I've previously used for macro photos, and did see a marked improvement in details. (I was using my Pan/Leica 100-400 at 400mm.)

This may well be my problem in not understanding 'Registax' - I just used the default settings - and wonder if you have any tips on optimising the settings for moon shots?
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Re: Another Moon shot

The success or not of Registax comes with those wavelets......I think..

Don't fully understand them, but have copied their setting from the web, and that seems to improve the final image considerably.

Huw is the expert tho' need to know his settings............
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Old 30th November 2017
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Re: Another Moon shot

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The success or not of Registax comes with those wavelets... ..................
Thank you for that. Since my last message, I've been doing some web reading myself and found a useful post at https://darkartsastro.ca/lunar-image...s-it-worth-it/

This article also draws attention to the importance of sharpening and, as well as 'wavelets', refers to 'de-convolution', which I've been looking up.

Apparently, Lucy-Richardson Deconvolution is a frequently-used technique for astronomical images and I have found it is available in the free 'Raw Therapy 5.3' software (where it's called LR Deconvolution within sharpening methods)

I'm still playing with images but making progress
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Re: Another Moon shot

Quote:
Originally Posted by MikeOxon View Post
Thank you for that. Since my last message, I've been doing some web reading myself and found a useful post at https://darkartsastro.ca/lunar-image...s-it-worth-it/

This article also draws attention to the importance of sharpening and, as well as 'wavelets', refers to 'de-convolution', which I've been looking up.

Apparently, Lucy-Richardson Deconvolution is a frequently-used technique for astronomical images and I have found it is available in the free 'Raw Therapy 5.3' software (where it's called LR Deconvolution within sharpening methods)

I'm still playing with images but making progress
Sorry for my late reply Mike.
Indeed Mark is correct, have a play around with the 'Wavelets' settings.

For my 300 f/4 and MC-14 combo I use the following:-
Layer 1 Denoise 0.10 sharpen 0.090 Preview 30
Layer 2 Denoise 0.00 sharpen 0.070 Preview 35
Layer 3 Denoise 0.00 sharpen 0.050 Preview 40

For my 300 f/2.8 Tokina and stacked converters I use the following:-
Layer 1 Denoise 0.15 sharpen 0.110 Preview 30
Layer 2 Denoise 0.05 sharpen 0.080 Preview 44.1
Layer 3 Denoise 0.05 sharpen 0.060 Preview 61.3

Sometimes using some fine adjustments to layers 2 and 3 so that the stacked image doesn't look over sharpened.

Cheers,

Huw
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Old 30th November 2017
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Re: Another Moon shot

Thanks, Huw. I'm still experimenting and am beginning to extract a lot more from the images I took. The LR Deconvolution seems worth exploring, as it does bring out the details remarkably well. I can also see that the 'over-sharpened' look is a potential hazard.
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Old 3rd December 2017
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Re: Another Moon shot

Very last minute I know but wondered if anyone could give me some advice on how to capture the images for stacking. Tonight is super moon night and I wasn't going to bother but the forecast is for a clear sky after 11pm and the moon should be at its brightest around midnight. So, remembering this post I thought it might be worth a try. Never tried stacking Astro shots but I have Registax software.

So just need to know briefly how to capture the shots and how many and then I can play with the software later.

Thanks,

Steve
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Old 3rd December 2017
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Re: Another Moon shot

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...............So just need to know briefly how to capture the shots and how many and then I can play with the software later.
I was a beginner too, a few nights ago but, in case you don't get any more expert replies, I did the following:

Set my E-M1 with Leica 100-400 lens on a tripod and used maximum zoom, with the moon centred on the rear screen.

I selected spot metering and aperture priority, with sequential drive and MF. I checked for accurate focus by magnifying the image on the screen then fired off a burst of shots at about 10fps. The exposure settings in my case were 1/640s @ f/8 ISO 640.

I found my burst contained 42 shots. I used PIPP software (as described in the reference I gave in an earlier post) to pre-select images for processing in Registax6 and applied wavelet sharpening.

Good luck
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