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Author Topic: New Dalsa 48 Megapixel sensor  (Read 20413 times)

bdp

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New Dalsa 48 Megapixel sensor
« on: December 18, 2008, 12:32:40 am »

http://www.imaginginsider.com/?p=83357

Which MFDB companies are likely to use this? Is it the Hassy 50MP chip? Unlikely Sinar will pick it up when they have an agreement with Leaf to use the 2:3 56MP chip in the Aptus-II 10, but it would be a step up from their current 33MP maximum if customers didn't want the 2:3 ratio (although it can simply be cropped down to a 50MP 3:4 ratio). No point for Phase when they have a 39 and now a 60MP chip, or would it fit nicely in between the two?

Ben
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David Grover / Capture One

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New Dalsa 48 Megapixel sensor
« Reply #1 on: December 18, 2008, 02:46:09 am »

The H3D50 uses a Kodak sensor.


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David Grover
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bdp

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New Dalsa 48 Megapixel sensor
« Reply #2 on: December 18, 2008, 03:12:03 am »

Ah ha. I was just curious because of the following line in the press release: "...it is already generating demand from customers in one of the world’s most demanding imaging applications: medium format professional digital photography."

After looking at the Dalsa website it looks like this sensor uses microlenses over but has no problem with wide angle lenses. At least I think this is what it says in the download about halfway down on this page:  http://www.dalsa.com/sensors/news/news.aspx?itemID=167 Look at page 3 under Optimization of Microlenses

This is Dalsa's answer to the Kodak 50MP chip which they call 'New Benchmark [5]' on the last page, which doesn't use microlenses, but the same size pixels (6.0)

Ben
« Last Edit: December 18, 2008, 03:29:08 am by bdp »
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Graham Mitchell

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New Dalsa 48 Megapixel sensor
« Reply #3 on: December 18, 2008, 06:12:08 am »

It's still 48x36mm. I really had my hopes up for a larger sensor when I saw the title.
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bdp

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New Dalsa 48 Megapixel sensor
« Reply #4 on: December 18, 2008, 06:16:30 am »

Big enough, surely? I find it hard to get excited about another millimetre here or there, but then again I don't shoot much wide angle stuff. Or were you hoping for a square format 56mmx56mm type sensor, which is much larger? A 6x7 or 6x8 MF chip would revive a creative dimension that was unique to MF photography. Maybe we will have to wait a few more years....

Ben
« Last Edit: December 18, 2008, 06:23:54 am by bdp »
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Graham Mitchell

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New Dalsa 48 Megapixel sensor
« Reply #5 on: December 18, 2008, 07:17:50 am »

Quote from: bdp
Big enough, surely? I find it hard to get excited about another millimetre here or there, but then again I don't shoot much wide angle stuff. Or were you hoping for a square format 56mmx56mm type sensor, which is much larger?

Just hoping for more 56x42mm options (645 full frame). Will make quite a difference at the wide end. A 40mm lens (which I have) on a 645 sensor is equivalent to 34mm on a 48x36 or a 31mm on a 44x33mm sensor. That's a significant difference. It means an even larger viewfinder image too, never a bad thing
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Gigi

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New Dalsa 48 Megapixel sensor
« Reply #6 on: December 18, 2008, 12:38:11 pm »

Quote from: foto-z
Just hoping for more 56x42mm options (645 full frame). Will make quite a difference at the wide end. A 40mm lens (which I have) on a 645 sensor is equivalent to 34mm on a 48x36 or a 31mm on a 44x33mm sensor. That's a significant difference. It means an even larger viewfinder image too, never a bad thing

Graham -

I'm in agreement with you, but might you clarify those mm equivalents? Are those MF equivalents, or 35 mm? And maybe check the equivalent for the 44 x 33 sensor, seems to be wider than narrower.

Best,
Geoff

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Geoff

mcfoto

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New Dalsa 48 Megapixel sensor
« Reply #7 on: December 18, 2008, 03:36:31 pm »

I wonder who will be first to use this sensor? Leaf, Sinar, Phase or the ZD back?
Denis
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Denis Montalbetti
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jerryrock

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New Dalsa 48 Megapixel sensor
« Reply #8 on: December 18, 2008, 04:33:23 pm »

Phase One is already using a Dalsa 60.5 megapixel sensor in their P65+ back (53.9 x 40.4mm).

Jerry
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Gerald J Skrocki

BJL

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New Dalsa 48 Megapixel sensor
« Reply #9 on: December 18, 2008, 04:58:13 pm »

Quote from: bdp
After looking at the Dalsa website it looks like this sensor uses microlenses over but has no problem with wide angle lenses. At least I think this is what it says in the download about halfway down on this page:

Indeed: this is potentially big news for MF sensors, and maybe for rangefinders too. Dalsa's new sensor uses micro-lenses which about double sensitivity, but unlike any previous micro-lenses, these give the same or better off-angle response as previous CCD's without micro-lenses, good out to about 35º off-axis. This means that shift lenses, wide-angle lenses and such should work fine, so that all Dalsa MF sensors should be able to have micro-lenses from now on, and thus about one stop more speed.

With this technology, Leica might at last be able to use a full 35mm format sensor in an "M" rangefinder.

So: more (ISO) speed, greater dynamic range, and greater resolution than the previous generation of sensors from Dalsa and Kodak --- but I am sure than some people will find cause to complain.
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PdF

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New Dalsa 48 Megapixel sensor
« Reply #10 on: December 18, 2008, 05:09:06 pm »

It works with microlenses. Unusable with tilt-shift lenses or with technical cameras.

PdF
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PdF

Carsten W

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New Dalsa 48 Megapixel sensor
« Reply #11 on: December 18, 2008, 05:46:19 pm »

Quote from: BJL
unlike any previous micro-lenses, these give the same or better off-angle response as previous CCD's without micro-lenses, good out to about 35º off-axis. This means that shift lenses, wide-angle lenses and such should work fine


Quote from: PdF
It works with microlenses. Unusable with tilt-shift lenses or with technical cameras.

LOL!  
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bdp

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New Dalsa 48 Megapixel sensor
« Reply #12 on: December 18, 2008, 07:41:28 pm »

PdF - this chip is different. Forget everything you know about the limitations of microlens-equipped chips.

Ben
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Dustbak

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New Dalsa 48 Megapixel sensor
« Reply #13 on: December 19, 2008, 03:10:14 am »

Why not wait and see how this sensor actually performs. I does sounds promising but for some reason that word doesn't mean much when it comes to this kind of equipment.
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BJL

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New Dalsa 48 Megapixel sensor
« Reply #14 on: December 19, 2008, 12:16:18 pm »

Quote from: PdF
It works with microlenses. Unusable with tilt-shift lenses or with technical cameras.
Read my post just above yours, or read Dalsa's publication at http://www.dalsa.com/public/corp/pdfs/DALS...dings_final.pdf
This sensor's off-axis performance is now as good as in sensors without micro-lenses.

(Unless ones want to be cynical of published precise quantitative measurements like the graphs in Dalsa's paper ... I am cynical about such cynicism, because a company like Dalsa would suffer badly with its industrial customers if it published blatantly false data, whose falsehood the engineers at such customers would very likely discover in their own testing.)


Aside: The address is
DALSA Professional Imaging,  High Tech Campus 27, 5656 AE Eindhoven, The Netherlands
so some significant part of Dalsa is still in the Netherlands, like when it was part of Phillips, even if part is now in Canada.


P. S. Another potential for these improved microlenses is allowing better, more compact wide to normal lenses for EVIL cameras, like micro FourThirds and the system that Samsung says it has coming in 2010. This could emphasize the size advantage over SLR's, just as range-finders have that size advantage.
« Last Edit: December 19, 2008, 12:20:48 pm by BJL »
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PdF

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New Dalsa 48 Megapixel sensor
« Reply #15 on: December 19, 2008, 03:34:39 pm »

Quote from: BJL
Read my post just above yours, or read Dalsa's publication at http://www.dalsa.com/public/corp/pdfs/DALS...dings_final.pdf
This sensor's off-axis performance is now as good as in sensors without micro-lenses.

(Unless ones want to be cynical of published precise quantitative measurements like the graphs in Dalsa's paper ... I am cynical about such cynicism, because a company like Dalsa would suffer badly with its industrial customers if it published blatantly false data, whose falsehood the engineers at such customers would very likely discover in their own testing.)


Aside: The address is
DALSA Professional Imaging,  High Tech Campus 27, 5656 AE Eindhoven, The Netherlands
so some significant part of Dalsa is still in the Netherlands, like when it was part of Phillips, even if part is now in Canada.


P. S. Another potential for these improved microlenses is allowing better, more compact wide to normal lenses for EVIL cameras, like micro FourThirds and the system that Samsung says it has coming in 2010. This could emphasize the size advantage over SLR's, just as range-finders have that size advantage.
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PdF

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New Dalsa 48 Megapixel sensor
« Reply #16 on: December 19, 2008, 03:49:09 pm »

Quote from: BJL
Read my post just above yours, or read Dalsa's publication at http://www.dalsa.com/public/corp/pdfs/DALS...dings_final.pdf
This sensor's off-axis performance is now as good as in sensors without micro-lenses.

(Unless ones want to be cynical of published precise quantitative measurements like the graphs in Dalsa's paper ... I am cynical about such cynicism, because a company like Dalsa would suffer badly with its industrial customers if it published blatantly false data, whose falsehood the engineers at such customers would very likely discover in their own testing.)


Aside: The address is
DALSA Professional Imaging,  High Tech Campus 27, 5656 AE Eindhoven, The Netherlands
so some significant part of Dalsa is still in the Netherlands, like when it was part of Phillips, even if part is now in Canada.


P. S. Another potential for these improved microlenses is allowing better, more compact wide to normal lenses for EVIL cameras, like micro FourThirds and the system that Samsung says it has coming in 2010. This could emphasize the size advantage over SLR's, just as range-finders have that size advantage.

Oups !

Sorry: I'm too impatient those last days. Maybe because I'm realy busy (too much work, of course !...). I don't want to be sarcastic: I only forgot to read your last post before the mine.

Please excuse me.
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PdF

free1000

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New Dalsa 48 Megapixel sensor
« Reply #17 on: December 19, 2008, 03:57:08 pm »

Quote from: BJL
Read my post just above yours, or read Dalsa's publication at http://www.dalsa.com/public/corp/pdfs/DALS...dings_final.pdf
This sensor's off-axis performance is now as good as in sensors without micro-lenses.

Actually this is the kind of sensor development I wanted to see before upgrading/buying another new MF back or camera. Two of my two biggest bugbears are

1) Off axis problems
2) Low sensitivity.

I don't think this helps with the other elephant in the room for those of us using wide non-retrofocus lenses though, sensor uniformity. I await avidly for some firm news of improvements in this area.
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Carsten W

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New Dalsa 48 Megapixel sensor
« Reply #18 on: December 19, 2008, 06:16:07 pm »

Quote from: BJL
Aside: The address is
DALSA Professional Imaging,  High Tech Campus 27, 5656 AE Eindhoven, The Netherlands
so some significant part of Dalsa is still in the Netherlands, like when it was part of Phillips, even if part is now in Canada.

I am not sure why a "significant part" is in the Netherlands, and "part" is in in Canada. Are you maybe Dutch? This quote is easily found on the DALSA website: "DALSA is headquartered in Waterloo, Ontario, Canada".
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froesner

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New Dalsa 48 Megapixel sensor
« Reply #19 on: December 19, 2008, 06:34:55 pm »

Quote from: carstenw
I am not sure why a "significant part" is in the Netherlands, and "part" is in in Canada. Are you maybe Dutch? This quote is easily found on the DALSA website: "DALSA is headquartered in Waterloo, Ontario, Canada".

And you carstenw, are you Canadian?

I found this threat interesting until - well, again someone has to turn it into a dutch versus canadian / 35mm versus mf / art versus moral / bla bla bla

Anyway

Have a nice xmas guys

Frank
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