Yet Another Sunset Script (yass) v4.5 - page 14 - LUA Scripting - CHDK Forum  

Yet Another Sunset Script (yass) v4.5

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Offline andrewexeter

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Re: Yet Another Sunset Script (yass) v4.5
« Reply #130 on: 28 / April / 2018, 22:45:19 »
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thanks for your help - I really enjoy making these timelapse, and day to night has always been difficult. I find the results from this code really nice - now I understand it a lot better and have learnt how to create these charts I shall endeavour to test it some more.

It appears the max input setting for TV is only 10 second with YAS 4.8 - that would be a useful change to increase it to say 40 second max. If the max TV seconds of 10 seconds are exceed in the actual timelapse - is it the case the program just adapts for it anyway as long as the interval is not exceeded ?
To take the best timelapse videos I can with only inexpensive equipment. Ixus 70

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Offline andrewexeter

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Re: Yet Another Sunset Script (yass) v4.5
« Reply #131 on: 30 / April / 2018, 06:04:48 »
Yass v4.5 test from last night, correction to last post - Tv low limit (sec) does go up to 32 seconds - which is great.


I find this script pretty good - it does what I want - here is another chart - seems to be ok?
To take the best timelapse videos I can with only inexpensive equipment. Ixus 70

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Offline andrewexeter

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Re: Yet Another Sunset Script (yass) v4.5
« Reply #132 on: 01 / May / 2018, 09:18:44 »
Same place - this time during a full moon and Jupiter




To take the best timelapse videos I can with only inexpensive equipment. Ixus 70

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Offline c_joerg

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Re: Yet Another Sunset Script (yass) v4.5
« Reply #133 on: 01 / May / 2018, 12:49:03 »
Same place - this time during a full moon and Jupiter

The lights are burned out too much. Especially the moon and the lamps on the right.

Rawopint has the advantage that you can limit the maximum overexposure ("Overexp thresh”) by RAW histogram. I think default is 3%. I always set it to a maximum of 1%. This of course causes the entire scene to darken.
In this case you can improve a lot with RAW processing. I would then lower the highlights and increase the dark areas.
M100 100a, M3 101a, G9x II (1.00c), 2*G1x (101a,100e), S110 (103a), SX50 (100c), SX230 (101a), S45,
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Offline andrewexeter

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Re: Yet Another Sunset Script (yass) v4.5
« Reply #134 on: 01 / May / 2018, 13:01:19 »
Hi Joerg,

thanks for your suggestion - I do not even shoot in Raw - but maybe I should. I will be uploading a infra-red timelapse of the same boat later tonight - you may like to see and send back some feedback.

regards Andrew
To take the best timelapse videos I can with only inexpensive equipment. Ixus 70

Re: Yet Another Sunset Script (yass) v4.5
« Reply #135 on: 01 / May / 2018, 13:08:06 »
Shooting RAW will slow down your maximum shooting rate.  It just takes longer to write the resulting image to the SD card. 
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Offline andrewexeter

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Re: Yet Another Sunset Script (yass) v4.5
« Reply #136 on: 01 / May / 2018, 15:26:51 »
Chart for Mevagissey Moonrise & Jupiter - 180430-1850V

thought I had lock the ND filter - maybe not, how does the data look on the chart?
To take the best timelapse videos I can with only inexpensive equipment. Ixus 70

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Offline andrewexeter

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Re: Yet Another Sunset Script (yass) v4.5
« Reply #137 on: 01 / May / 2018, 15:29:58 »
Testing out an infra-red converted camera for timelapse.

« Last Edit: 01 / May / 2018, 17:34:52 by andrewexeter »
To take the best timelapse videos I can with only inexpensive equipment. Ixus 70


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Offline c_joerg

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Re: Yet Another Sunset Script (yass) v4.5
« Reply #138 on: 02 / May / 2018, 02:06:16 »
Shooting RAW will slow down your maximum shooting rate.  It just takes longer to write the resulting image to the SD card.
Tv low limit (sec) does go up to 32 seconds - which is great.
I would not worry about that at a shutter speed of 32s.
 
I do not know how big the difference is with the IXUS, but with my cameras (SX50, S110, G1x, EOS M3) the difference is about 0.6s (Max Interval RAW => 1.2s, Max Interval JPG => 0.6s ). The advantage of RAW definitely outweighs the disadvantage.
Testing out an infra-red converted camera for timelapse.
Again, the overexposure annoys me. The background also looks very blurry. Presumably that's the focus with infrared?
M100 100a, M3 101a, G9x II (1.00c), 2*G1x (101a,100e), S110 (103a), SX50 (100c), SX230 (101a), S45,
Flickr https://www.flickr.com/photos/136329431@N06/albums
YouTube https://www.youtube.com/channel/UCrTH0tHy9OYTVDzWIvXEMlw/videos?shelf_id=0&view=0&sort=dd

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Offline andrewexeter

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Re: Yet Another Sunset Script (yass) v4.5
« Reply #139 on: 02 / May / 2018, 02:30:43 »
it was a converted infra red camera - focus may be a little incorrect - but maybe I can test out some different focus values. I think the last part of the video is ok - I think I will try with a church and trees next to a river next - trees as you know become white.

I may well look into using raw but not just yet - with my ixus 70 what do you this is the fastest interval I can do in day and at night, with normal camera?

At night I will need about 8 second interval with 3 second exposure?

At day can I get 1 second interval , 1/500 sec exposure , both with jpeg only?

thank you all for the feedback!
To take the best timelapse videos I can with only inexpensive equipment. Ixus 70

 

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