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#46 |
Regular Crew
Join Date: May 2007
Location: Amherst, NY
Posts: 100
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hmm, that car was in the water like all day! aren't there any tow cables?
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#47 |
Regular Crew
Join Date: Nov 2007
Location: Heeney colorado
Posts: 103
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Depth of field explained
The above is only the tip of the iceburg. here is my drop of water: DOF is a function of sensor size and f setting. The greater the sensor size the greater the FOV. The smaller the f setting (larger aperture) the less the depth of field (and more expensive the lens). Last edited by Charles Young; April 12th, 2008 at 10:04 PM. Reason: Edited to remove mistake about more being less |
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#48 |
Major Player
Join Date: Nov 2007
Location: Los Angeles, CA
Posts: 498
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Charles,
"Depth of field" actually refers to the depth in a scene in which objects appear in focus. More depth = more of the scene in focus. Because we use expensive accessories on video cameras to simulate the properties of a 35mm film camera, many seem to think that by adding these accessories we are getting "greater depth of field." In fact, using standard photographic terminology, a 35mm adapter gives LESS depth of field. Wider apertures also give less depth of field. Larger formats (film and chip size) give less depth of field at a given FOV and aperture. I think that a misunderstanding of the terminology is what causes so much confusion on this topic. |
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#49 |
Major Player
Join Date: May 2002
Location: West Central Florida
Posts: 762
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Thanks Eric. I was about to take my own life. Good explanation.
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#50 |
Regular Crew
Join Date: Nov 2007
Location: Heeney colorado
Posts: 103
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FOV??? did I write that, Oops, way too long of a day...
Larger or more DOF with A SMALLER aperature, hince a pin hole camera needs no focusing and has an infinite DOF. Larger aperature gives less DOF and an infinitly expensive lens gives a... I don't know what you call an infinitly small DOF, hmm I will sleep on it... Thanks Eric |
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#51 |
Trustee
Join Date: Aug 2006
Location: London UK
Posts: 1,939
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it was parked on the boat ramp, the tide came up. swept it away, then the tide went down and it was towed out. The tide comes up very high in that part of the Thames and often floods around there. Locals know never to park your car even in some of the parking spaces!
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#52 |
Major Player
Join Date: Jan 2007
Location: Malta
Posts: 306
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Phil, at what time today do you think you'll post up the review on the EX3?
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#53 |
Trustee
Join Date: Aug 2006
Location: London UK
Posts: 1,939
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I would say midnight tomorrow night GMT
It's all ready...just need to click that publish button!! |
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#54 |
Regular Crew
Join Date: Apr 2007
Location: Sydney, Australia
Posts: 40
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Awesome Phil, cant wait to read about it... Im sure its a fantastic camera, but from the look of the pics of the EX3, its taken a heavy dose of ugly pills... IMO...
:) Cheers Last edited by Robb Cox; April 13th, 2008 at 12:35 AM. Reason: grammar |
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#55 |
Trustee
Join Date: Feb 2006
Location: USA
Posts: 1,684
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Could somebody ( other than Philip who's sworn to secrecy) who saw the accidental sneak preview description of the EX-3 tell us what was in it. The article is gone for now.
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#56 |
Major Player
Join Date: Jan 2007
Location: Malta
Posts: 306
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I second Leonard! Whoever have read the article, is there anything way out different from the EX1? From the photos all I can see are the following changes: interchangeable lens / a monitor evf combination with an interesting mechanism / a revamped body with better placed buttons / some additional inputs and outputs / a very useful second accessory shoe placed in an interesting place.
I'm eager to know whether there is the facility to record SD like the 335 and 355's! |
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#57 |
Regular Crew
Join Date: May 2007
Location: Amherst, NY
Posts: 100
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yes, the big secret is that it's the new lens-less organic sensor technology. interesting stuff. could there ever have been a more anticipated moment on here than midnight tomorrow?
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#58 |
Major Player
Join Date: Nov 2006
Location: Belgium | Europe
Posts: 441
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#59 |
Regular Crew
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From the little I've managed to dig up I'm guessing the secondary shoe is for a new 60 gig hard drive, redundancy or dumping? Both? Dunno.
- Ray
__________________
www.undergroundplanet.com |
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#60 | |
Regular Crew
Join Date: Jan 2008
Location: Japan
Posts: 172
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Quote:
Phil should have an actual hands on review up tonight....which will be Monday afternoon my (Tokyo) time. Damn, why ain't the world flat. |
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