India Point Park

India Point Park
by matt-ball                

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Feb
10
comment Bright image with infrared D3s and cap on (image included)
Found a link, and, By George, the pattern seems to fit. photographyoftheinvisibleworld.blogspot.com/2011/02/…
Feb
9
comment Bright image with infrared D3s and cap on (image included)
@Michael Clark I agree with most of what you've said. All digital cameras show digital 'dark noise' with sufficiently long exposures at very high ISO's. It would be interesting to know at what ISO and how long the exposure was made. More data needed... See clarkvision.com/articles/digital.sensor.performance.summary/… for a chart of noise vs temperature for camera sensors.
Feb
8
comment Bright image with infrared D3s and cap on (image included)
@Michael Clark You're right, but you're talking about energy spillover from something or things that are hot enough to emit radiation just outside the visible spectrum- 400C or so. The warmth of a hand (or the self heating of camera sensor electronics) are far cooler. I suppose it could be thermal noise from circuitry behind the sensor rather than in front of it- that might create a varied pattern of noise...
Feb
8
comment Bright image with infrared D3s and cap on (image included)
What the camera sees is near infrared radiation- just beyond the visible spectrum. It can't see heat radiation (Long-wavelength infrared) - you need special sensors for that. Perhaps you're seeing leakage through your viewfinder or the body cap. Just because something is visually opaque doesn't mean it's infrared opaque. How long is the above exposure? Could be electronic/sensor/readout noise and have nothing to do with imaging per se.
Jan
25
reviewed Approve How does software exposure compensation work in RAW files?
Jan
21
reviewed Approve How would I add a warm, golden glow to a photo?
Jan
13
comment Aluminium vs. Carbon tripods
Yup. And if they don't have the foam, you can get tubular foam pipe insulation at your local hardware store that'll do just fine.
Jan
13
comment Aluminium vs. Carbon tripods
One thing I've found is that, in addition to being lighter, on cold winters days carbon fiber doesn't freeze your fingers like an aluminum tripod does. Some lightweight carbon tripods come with a hook on the center post so you can hang something heavy (like a camera bag) from it to make it more stable. Keep in mind that you can purchase the tripod and the head separately- the two usually attach with a standard screw. This makes optimizing for your particular needs a little easier.
Jan
13
answered How to use a speedlight for real estate photography?
Jan
10
comment creating xmp files without the original raw files
Would you mind marking my answer as accepted? Thanks!
Jan
10
answered creating xmp files without the original raw files
Jan
10
comment Which is a better starter camera?
I don't have the lens with me at the moment but I'm pretty sure the "In Focus" dot and arrows show when the lens is focused properly on my D800. My old 105 2.5 works great as well. Here's a description of how it works- photo.stackexchange.com/a/48720/11772
Jan
9
awarded  Custodian
Jan
9
reviewed Approve Understanding IR / RF flash systems
Jan
9
comment How can I automatically apply smart cropping to hundreds of coin photos?
Why not crop in camera with a zoom for the desired margins on the top and bottom (i.e. make the coins the same size and position in the frame). If you make sure the coin(s) are centered in the frame then a crop script or action should take care of the problem.
Jan
9
answered Which is a better starter camera?
Sep
26
awarded  Yearling
Aug
23
comment Why is my photo corrupt in Camera RAW when it shows fine in-camera and in Photoshop?
I may be mistaken, but I think the camera preview and PS preview are taken from a small JPG file that's part of the larger NEF. I can't really comment of the actual problem (other than it looking like it's an electronics issue- duh) but this might explain why the previews are fine and the NEF is corrupted. Are there any others that have the same issue?
Jun
25
comment What lens designs are sharper than a pinhole lens but also allow for multi-month exposures?
I think most photographers use ND filters for extremely long exposures. You could use a lens in your design and stack on filters to give the exposures you want. Or you could use an optimum sized pinhole with ND filter material in front of it.
Jun
25
revised What lens designs are sharper than a pinhole lens but also allow for multi-month exposures?
Changed text based on later clarifications by the OP