Comparison ASI 174MM x PointGrey Grasshopper 3 - Jupiter 2015-03-12 (Almir Germano)

Contains: Solar system body or event

Comparison ASI 174MM x PointGrey Grasshopper 3 - Jupiter 2015-03-12

Here we go...

C11, f/25, near equal seeing (2/5) and transparency (7/10).

At the screen, live, both cameras show more or less the same image. Maybe GH3 a little less dark background. Parameters with Firecapture 2.4 resulting in very similar histograms in all channels.

Extremely fast FPS with the ASI, up to 180 fps for the L channel! More than 10000 frames each, huge difference to the more "pedestrian" 3000 to 5000 frames with the Grasshopper, but...

Well, not very much difference in S/N ratio, as estimated by the "tolerance to wavelets" of the stacked images.

If one zooms in, some difference can be seen (?) though, a tad bit more crisp with the GH3, maybe, but there is an apparent "pixelization" on the GH3 images, specially with IR and B channels. It was visible in previous images, but does not impact the details, I think.

All in all, for me, this is a tie, and, if you put the price in the balance, the ASI is a winner, hands down.

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Comparison ASI 174MM x PointGrey Grasshopper 3 - Jupiter 2015-03-12

Comparison ASI 174MM x PointGrey Grasshopper 3 - Jupiter 2015-03-12

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Comparison ASI 174MM x PointGrey Grasshopper 3 - Jupiter 2015-03-12

Comparison ASI 174MM x PointGrey Grasshopper 3 - Jupiter 2015-03-12

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