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I have no speed options between 1/2000 & 1/3000 or between 1/3000 & 1/4000. I believe there should be at least two options. 1/2500 & 1/3200. How can I get these please? Tony
Tony's user avatar
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2 answers
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The F-Stop numbers of a lens can easily be described as raising the square root of 2 to some fractional power (with some rounding), that results in numbers like f5.6, f/8, f/11, f/16, f/22 etc The ...
Peter M's user avatar
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I have a Nikon D800 camera, which is quite old nowadays, but has a full frame sensor and that I have some very expensive lenses for. I also have a Samsung Galaxy Note 9, which is also getting a bit ...
Nicholas's user avatar
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1 vote
2 answers
131 views

That several recent feature films used VistaVision (not anamorphic, just 35 mm rotated frame) got me reading about actual anamorphic systems, starting with CinemaScope. The American Cinematographer ...
uhoh's user avatar
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2 votes
2 answers
118 views

How do I differentiate between all the B&W film stocks available from Ilford or Kodak (or any other manufacturer)?
osullic's user avatar
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2 answers
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I'm reprocessing an old series of astrophotos of the Veil Nebula by using Siril. When I opened the ready stacked (FITS) picture, I found out that the red channel shows rather unsharp stars. It's not ...
Neppomuk's user avatar
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3 votes
3 answers
513 views

I used the (hopefully) well-calibrated gray and white cards sold here https://www.amazon.fr/Mennon-Gris-Carte-Taille-Blanc/dp/B01HABECNW/ They were measured to be spectrally flat In CameraRaw, when I ...
nbonneel's user avatar
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1 vote
1 answer
70 views

I've been shooting a lot of outdoor lifestyle portraits lately, and I love that deep, moody aesthetic you see everywhere (darker shadows, rich colors, maybe a little mist). The problem is, whenever I ...
Joy Huang's user avatar
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11 votes
3 answers
2k views

I have a fairly expensive camera and a lightish tripod and am often filming outside. If it is windy, sometimes gusts can be so strong that the tripod is blown over causing potentially catastrophic ...
Angus Comber's user avatar
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2 votes
0 answers
50 views

I have a Mamiya RZ67 with 120 back. Consistently I get a larger separation between the first and the second frame. This makes the last frame a bit closer to the edge of image area and my develop lab ...
Ehsan Iran-Nejad's user avatar
  • 121
1 vote
1 answer
37 views

I have a SONY α77ii and a small mix of Minolta and Sony lenses. Working well (knock on wood). I am looking for a way to connect to a simple optical microscope made by Swift (antique but clear optics). ...
BG Cannon's user avatar
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0 votes
3 answers
44 views

Photographers often discuss “microcontrast” as distinct from resolution or sharpness, but it seems poorly defined quantitatively. Are there optical or image-processing metrics that isolate local ...
Anushka_Grace's user avatar
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2 votes
2 answers
87 views

A tripod usually mounts to a camera with a screw that doesn't require tools to tighten. We have some makeshift ones with ordinary ¼ inch screws. We are worried about over-tightening using tools. ...
93Iq2Gg2cZtLMO's user avatar
  • 133
1 vote
1 answer
56 views

My Nikon D90 rear LCD shows only horizontal lines. All other camera functions work well. The LCD does not show any photo, video,or menu content. There are no scratches or cracks in the LCD. What is ...
Mike Johnson's user avatar
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8 votes
8 answers
2k views

Background: I take many photos of stage performers under LED stage lights. Lighting designers love to lean on unnatural colours: reds, magentas, blues. I am often winding those decisions back a bit ...
Oddthinking's user avatar
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