Digital BW, The Print

> > I have oredered a monochrome sensor back made for my Hasselblad
> > 500CM from MegaVision and expect to meet with the president of the
> > company next week to have it delivered and tested. The sensor is
> > full frame 35mm size and will be 11 megapixels.
> 
> Is it a Canon chip? Sounds like the 1Ds sensor without the Bayer filter 
over
> it.

Nope. the EOS 1Ds chip is a CMOS chip...the S427 back (which is what I'm 
assuming you are talking about) uses a CCD. It is most likely the Dalsa 
(formerly Phillips) 4x3 chip, but I could be wrong.

> Also, I heard something months ago about someone that retrofits 
> dslrs with a "B&W" sensor.  Is this the same thing? Where can I get 
> more info?

Kodak did a monochromatic version of the DCS 760 a while back...didn't 
know other vendors were making this an option. Seems a little limiting, 
but if your game is 100% B&W then why not?


Eric  Bullock
Color Guy
Hecht's/Strawbridge's Advertising
685 N. Glebe Road
Arlington, VA 22203

703.247.2391
eric_bullock@...


[Non-text portions of this message have been removed]

eric_bullock@... wrote:

>>>I have oredered a monochrome sensor back made for my Hasselblad
>>>500CM from MegaVision and expect to meet with the president of the
>>>company next week to have it delivered and tested. The sensor is
>>>full frame 35mm size and will be 11 megapixels.
>>>      
>>>
>>Is it a Canon chip? Sounds like the 1Ds sensor without the Bayer filter 
>>    
>>
>over
>  
>
>>it.
>>    
>>
>
>Nope. the EOS 1Ds chip is a CMOS chip...the S427 back (which is what I'm 
>assuming you are talking about) uses a CCD. It is most likely the Dalsa 
>(formerly Phillips) 4x3 chip, but I could be wrong.
>
>  
>
>>Also, I heard something months ago about someone that retrofits 
>>dslrs with a "B&W" sensor.  Is this the same thing? Where can I get 
>>more info?
>>    
>>
>
>Kodak did a monochromatic version of the DCS 760 a while back...didn't 
>know other vendors were making this an option. Seems a little limiting, 
>but if your game is 100% B&W then why not?
>
>  
>
Unless it gives significantly more tonal range/exposure latitude than 
available color digibacks, why even waste time on it?



 
Keith Krebs

"Just some guy," caretaker of the Multiverse's largest EPSON printer 
User Community (highly recommended by Vogon Poets and MegaDodo 
Publications), at:
http://groups.yahoo.com/group/EPSON_Printers/
and  the Multiverse's largest Canon printer User  Community at:
http://groups.yahoo.com/group/Canon-printers
"For the rest of you out there, the secret is to bang the rocks together 
guys"

And why is the latest "News" on the MegaVision site from February 2003?


 
Keith Krebs

"Just some guy," caretaker of the Multiverse's largest EPSON printer 
User Community (highly recommended by Vogon Poets and MegaDodo 
Publications), at:
http://groups.yahoo.com/group/EPSON_Printers/
and  the Multiverse's largest Canon printer User  Community at:
http://groups.yahoo.com/group/Canon-printers
"For the rest of you out there, the secret is to bang the rocks together 
guys"

 

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Wouldn't a sensor that only records luminosity produce a smoother image
since it would not have to also chose between RGB values? It that what make
the Foveon such a noise free image?

Wendel

> 
> Unless it gives significantly more tonal range/exposure latitude than
> available color digibacks, why even waste time on it?
> 
> 
> 
>  
> Keith Krebs

There was some discussion recently in the dpr Kodak dslr forum about 
the possibility that Kodak might introduce a monochrome dslr.  The cmos 
sensor currently used in the 14n/c cameras is apparently an RGB variant 
of an existing monochrome sensor from FIllfactory so it should be 
relatively easy for Kodak to produce a monochrome version:

http://www.fillfactory.com/htm/products/htm/ibis4_14000/ibis4_14000.htm

From:   "Val Brunell" < vbrunell@d... >
Date:   Thu Jul 22, 2004  6:48 pm
Subject:   Monochrome Sensors (Was Digest Number 2378)

Mark...I (and I am sure others) will be interested in your
assessment. Looking forward to hearing more...Thanks, Val

--- In DigitalBlackandWhiteThePrint@yahoogroups.com , markmaio@m...
wrote:
 > Val,
 >
 > I have oredered a monochrome sensor back made for my Hasselblad
500CM from MegaVision and expect to meet with the president of the
company next week to have it delivered and tested. The sensor is
full frame 35mm size and will be 11 megapixels. Five years ago I
partnered with MegaVision to use their technology in the ophthalmic
imaging field and since I also do my personal fine art work, the
idea of having a monocrome sensor has always interested me. We use
the mononchrome sensor in ophthalmic imaging applications and the
results are beautiful. The idea for MegaVision is to have me see how
I like it, both in use and for quad tone printing (I use
Piezography), and then they might start offering it as a product. I
will let the group know how it goes. Since I only get this list in
digest form and tend to travel a lot, should there be any post
regarding the monochrome back, it might take me a while to respond.
 >
 > Mark Maio
 >



[Non-text portions of this message have been removed]

I have known Ken Boydston, owner of Megavision, since being part of his  
mentor group back in 1998. He is one of the nicest, most modest engineers I  have 
ever met. He INVENTED many of the things other companies have copied  since 
1983. He and I have shared the "bucket" analogy to describe  sensors to novices 
for many years. His latest thing is to put an OQO  miniature PC running 
Windows on the back of his camera backs (you can even do  Photoshop on it). VERY 
cool stuff. He has put together a few prototype backs  using the Kodak Square 
sensor (16 MP).
 
I have not spoken to him in several months, but he didn't seem real  
enthusiastic about the market prospects for a monochrome back. However, being  the 
pioneer that he is, if anyone does it, it will probably be him. He has sold  his 
FB backs for about $7-8,000 in either 6 or 11 MPx, so if it  were to go  to 16 
or 22 Mpx for the purists on this board, I suspect they would be in the  
$15,000 range. Just remember that you can do Infrared Captures with them also  AND 
you have full spectrum resolution, so they are much sharper than the color  
versions. I suspect having a single-shot monochrome sensor is like having 
double  the well site count of a Bayer color one. So a 22 Mpx monochrome is like 
having  44 in color. So a more affordable 11 MPx mono would be more like a 22 
Mpx in  color. So don't give away those Medium Format cameras just yet.
 
Claude
 
In a message dated 7/9/2005 2:04:11 P.M. Eastern Daylight Time,  
DigitalBlackandWhiteThePrint@yahoogroups.com writes:

Now to  pose a question I have been wondering about: if a sensor were 
made  specifically for B&W, what would be changed?


 


[Non-text portions of this message have been removed]

Hi Claude,

Thanks for that post.

Do you have any idea if he makes one for the Rollei 6000 series?

I'm sitting on one 6000 outfit waiting for a "reasonably" priced 
digital back.

$25-30,000 is rich for my blood.

Thanks,

Scott


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, claudej1@a... 
wrote:
>  
> I have known Ken Boydston, owner of Megavision, since being part of 
his  
> mentor group back in 1998. He is one of the nicest, most modest 
engineers I  have 
> ever met. He INVENTED many of the things other companies have 
copied  since 
> 1983. He and I have shared the "bucket" analogy to describe  
sensors to novices 
> for many years. His latest thing is to put an OQO  miniature PC 
running 
> Windows on the back of his camera backs (you can even do  Photoshop 
on it). VERY 
> cool stuff. He has put together a few prototype backs  using the 
Kodak Square 
> sensor (16 MP).
>  
> I have not spoken to him in several months, but he didn't seem 
real  
> enthusiastic about the market prospects for a monochrome back. 
However, being  the 
> pioneer that he is, if anyone does it, it will probably be him. He 
has sold  his 
> FB backs for about $7-8,000 in either 6 or 11 MPx, so if it  were 
to go  to 16 
> or 22 Mpx for the purists on this board, I suspect they would be in 
the  
> $15,000 range. Just remember that you can do Infrared Captures with 
them also  AND 
> you have full spectrum resolution, so they are much sharper than 
the color  
> versions. I suspect having a single-shot monochrome sensor is like 
having 
> double  the well site count of a Bayer color one. So a 22 Mpx 
monochrome is like 
> having  44 in color. So a more affordable 11 MPx mono would be more 
like a 22 
> Mpx in  color. So don't give away those Medium Format cameras just 
yet.
>  
> Claude
>  
> In a message dated 7/9/2005 2:04:11 P.M. Eastern Daylight Time,  
> DigitalBlackandWhiteThePrint@yahoogroups.com writes:
> 
> Now to  pose a question I have been wondering about: if a sensor 
were 

> made  specifically for B&W, what would be changed?
> 
> 
>  
> 
> 
> [Non-text portions of this message have been removed]