UltraLow Light ,2.2 MegaPixel @100 fps Canon Full Frame Sensor

JA · #1 03-04-2018, 10:00 AM

Hi folks,

I hope you're all happy and well. For your reading pleasure and interest here are some details of a 100fps UltraLow Light, giant 19µm pixel, 2.2 MegaPixel Canon Full Frame sensor. And as per Canon "The 35MMFHDXS CMOS sensor is available in RGB, RGB+IR or Monochrome."

See article at dpreview:
https://www.dpreview.com/videos/8604...ally-low-light

And youtube video:

Click here to load the video

Best
JA

Merlin66 (Ken) · #2 03-04-2018, 10:05 AM

Very nice!
But you'd need some specialised scopes to handle the 19 micron pixel size..

RickS (Rick) · #3 03-04-2018, 10:39 AM

With my Ceravolo 300 at f/9 I could do wide fields with an image scale of 1.42 arcsec/pixel

Slawomir (Suavi) · #4 03-04-2018, 10:44 AM

A 4m focal length would give a nice sampling at 1 arcsecond per pixel. A 0.5m f/8 RC on AP 1600 or similar would be a perfect match for this sensor. Not something you often see in amateur astronomer's backyards...

Slawomir (Suavi) · #5 03-04-2018, 10:45 AM

Quote:

Originally Posted by RickS

With my Ceravolo 300 at f/9 I could do wide fields with an image scale of 1.42 arcsec/pixel

That's just plain undersampling Rick!

RickS (Rick) · #6 03-04-2018, 11:14 AM

Quote:

Originally Posted by Slawomir

That's just plain undersampling Rick!

I'd use Drizzle, Suavi

Merlin66 (Ken) · #7 03-04-2018, 11:16 AM

19 micron pixel is almost like stepping back in time to the ol' days of film.

20 micron was a reasonable "approx" of the silver halide crystals, the significant benefit with today's CCD/CMOS chips is the increased sensitivity and lack of "reciprocity failure" in longer exposures.

Ahhhhh those were the days!

Slawomir (Suavi) · #8 03-04-2018, 11:52 AM

Quote:

Originally Posted by RickS

I'd use Drizzle, Suavi

But what about precious SNR...?

I know! MultiwavelnegthSnrBoosterScript

Wavytone · #9 03-04-2018, 04:07 PM

Might almost suit my Santel

rally · #10 03-04-2018, 05:16 PM

Could be interesting.

The specs read oddly but as far as I can tell (and I'm not 100%) the relevant ones for us are :
Read noise 2.2e @35C
Dark noise 250e/sec @60C
Well depth 61,000e

I would have expected greater well depth for such a large welled sensor.

But if the Read Noise is in fact 2.2e then the dynamic range is 89dB and approx 15 bits after read noise
If the usual rules apply ie dark noise doubling at around 6.0C then at Zero-C this sensor has very little dark noise - less than 0.5e/sec

How do we chill it ?!

Rally