From: albe albo <richter1956@yahoo.com>

Date: February 11, 2010 10:26:13 AM MST

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] Astro & DMK ROI?

Ok Milton,

thank you fro the explanation.

I got the message.

When i said that the "disk" would work better i was thinking only to the data written to the disk and not to the data passing through the firewire.

I understood that the hardware part of the system will remain unchanged while the crop & save would be made by your software only after that the whole data arrived to the processor.

Anyway in my thoughts the space saving would not be a secondary result.

When grabbing 3.000 frames of Mars x IR-R-G-B (approx 8 giga bytes for a single composition) then every space saving would be really appreciated!

I confess that i often quit the grabbing because i have the feeling that i'm wasting something "physical" like water or so. LOL!

That's the age.

Should it be easier on monochrome cameras?

Cheers

Alberto

Da: Milton Aupperle <milton@outcastsoft.com>

A: Astro_IIDC@yahoogroups.com

Inviato: Gio 11 febbraio 2010, 01:06:03

Oggetto: Re: [Astro_IIDC] Astro & DMK ROI?

Hi Alberto;

On 10-Feb-10, at 4:54 PM, albe albo wrote:

Thank you Milton,

even the simple reduced disk space used is a nice and useful option, isn't it?

Perhaps it is very hard and time consuming to implement.

It isn't simple to do as there are lots of things that have to be worked through, especially when dealing with bayer video.

For the moon of course it's useless but for the planets it would be very precious.

Lately with Mars i'm wasting lot of gigabytes  of black unused screen.

Since my mount is fairly precise the planet doesn't wander so much so i could easily set a smaller rectangle. 

And if they had implemented Format 7 like many other companies, I would not need to  do it.

Even if the bandwidth/framerate remain the same i guess that the disk would work better for the smaller amount of data that will be written.

It makes zero difference over the FireWire bus. The only thing it does is reduce the image size.

TTYL..

Milton Aupperle