On Thu, 30 Nov 2006, Shel Belinkoff wrote:
Why do I ask? Well, I just woke up curious this morning, but also, I'm
trying to understand why some digital cameras are so big compared to some
film cameras. And, since film cameras have a larger mirror and mirror box,
the firmware/software seemed
How much space does the computer chip/boards take up in the various Pentax
DSLR's, both in terms of physical space and memory? Anyone know? Is there
a schematic somewhere that shows the location and size of the chip/board?
Shel
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Remeber where you used to put the film? I think they decided they
could put something else in that space. g
Seriously, I have no idea. Interesting question. Maybe I'll take
Christie's K100 apart after she goes to sleep tonight.
On 11/30/06, Shel Belinkoff [EMAIL PROTECTED] wrote:
How much
On Nov 30, 2006, at 9:44, Shel Belinkoff wrote:
How much space does the computer chip/boards take up in the various
Pentax
DSLR's, both in terms of physical space and memory? Anyone know?
Is there
a schematic somewhere that shows the location and size of the chip/
board?
Time for
I've seen exploded and ghost pictures of a couple
of DSLRs, and there weren't chip boards per se--the
electronics were all on flexible boards or ribbons,
and they wrap all over the place.
Rick
--- Shel Belinkoff [EMAIL PROTECTED] wrote:
How much space does the computer chip/boards take up
in
This isn't a Pentax, but here's the dissection of a 20D that the owner
documented. I would imagine most DSLRs are similar.
http://www.pbase.com/gmr2048/20d-dissectionpage=all
-P
Shel Belinkoff wrote:
How much space does the computer chip/boards take up in the various Pentax
DSLR's, both in
Paul, recalling that camera is in a certain sense an extension of
photographer's vision and photographer him or her self I feel
distinctly Borg now, having looked at 20D innards. Taking such a thing
to my eye in order to take a picture definitely makes me feel forward
in 24th century.
;-).
On
For the most part, I don't know what I'm looking at. All those pics are
overwhelming. Thanks for the thought
Shel
[Original Message]
From: Paul Sorenson
This isn't a Pentax, but here's the dissection of a 20D that the owner
documented. I would imagine most DSLRs are similar.
On Nov 30, 2006, at 11:11, Paul Sorenson wrote:
This isn't a Pentax, but here's the dissection of a 20D that the owner
documented. I would imagine most DSLRs are similar.
http://www.pbase.com/gmr2048/20d-dissectionpage=all
Ouch.
This clearly got dunked in water and destroyed... I guess he
That's nice - where does the firmware go? Tks!
Shel
[Original Message]
From: Paul Sorenson
Yes, the sheer volume of pix can be a little disconcerting - This link
is probably the best overview.
http://www.pbase.com/gmr2048/image/69559230
The rectangular black object is the sensor,
Shel -
Yes, the sheer volume of pix can be a little disconcerting - This link
is probably the best overview.
http://www.pbase.com/gmr2048/image/69559230
The rectangular black object is the sensor, the green things are circuit
boards and the rust colored items are ribbon cables that connect the
PROTECTED]
Reply-To: Pentax-Discuss Mail List pdml@pdml.net
To: Pentax-Discuss Mail List pdml@pdml.net
Subject: Re: Speaking of Firmware
Date: Thu, 30 Nov 2006 11:16:39 -0800
That's nice - where does the firmware go? Tks!
Shel
[Original Message]
From: Paul Sorenson
Yes, the sheer
How do you (and others) know all this stuff? Are you all tech people of
some sort?
Shel
[Original Message]
From: Paul Sorenson
Yes, the sheer volume of pix can be a little disconcerting - This link
is probably the best overview.
http://www.pbase.com/gmr2048/image/69559230
The
box,
the firmware/software seemed that it might contribute to the size of the
camera in some way.
I am ignorant of such things and want to be less ignorant.
Shel
[Original Message]
From: Tom C [EMAIL PROTECTED]
To: pdml@pdml.net
Date: 11/30/2006 11:21:07 AM
Subject: Re: Speaking of Firmware
.
Tom C.
From: Shel Belinkoff [EMAIL PROTECTED]
Reply-To: Pentax-Discuss Mail List pdml@pdml.net
To: Pentax-Discuss Mail List pdml@pdml.net
Subject: Re: Speaking of Firmware
Date: Thu, 30 Nov 2006 13:00:03 -0800
Well, your comment makes no sense to me ;-))
Paul described what was being shown
Shel -
The firmware is really software that is stored on a special integrated
circuit memory chip mounted on one of the green circuit boards. A chip
like this is sometimes called an E-PROM - Erasable Programmable Read
Only Memory. Think of it a kind of a solid state hard drive that only
Yes, Boris, it does give one that sort of feeling sometimes. Just
imagine what kind of man/machine interaction will exist 30 or 40 years
from now.
-P
Boris Liberman wrote:
Paul, recalling that camera is in a certain sense an extension of
photographer's vision and photographer him or her
This is speculation mostly but the big square chip here, marked DIGIC,
is possibly the processor. One of the other smaller chips near the
corrosion might contain the firmware.
http://www.pbase.com/gmr2048/image/69666958
These four large chips made by PSC are the DRAM chips, for the image buffer:
The DIGIC is Canon's custom image processor, probably has built in JPG
stuff, etc. The Toshiba MIPS processor probably handles all the rest of
the data traffic, including all the user interface, firmware, CCD data
shuffling, possibly auto focus, plus who knows what else.
rg
[EMAIL
Tom C wrote:
One would have to know the exact chip being used and it's physical
dimensions to accurately answer your question regarding the physical
3-dimensional storage requirements. The recent firmware upgrade for the
K100D expands to slightly over 4 MB. Physically that's a very tiny
Wow!
I don't think I'll disassemble any of my cameras.
Paul
On Nov 30, 2006, at 5:22 PM, Paul Sorenson wrote:
Yes, Boris, it does give one that sort of feeling sometimes. Just
imagine what kind of man/machine interaction will exist 30 or 40 years
from now.
-P
Boris Liberman wrote:
Paul,
On Thu, Nov 30, 2006 at 06:53:32PM -0500, Doug Franklin wrote:
That's surely true. As a general rule of thumb, though, 4MB of flash or
ROM could easily fit inside a chip package smaller than a postage stamp
and about the thickness of a cardboard match.
Heck, you can get 4GB of memory in
John Francis wrote:
Heck, you can get 4GB of memory in that space - think SD card!
4MB will be really tiny - I wouldn't be surprised to find that
there's 16MB or more sharing die space with some other chip.
That's why I said easily. :-)
--
Thanks,
DougF (KG4LMZ)
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