Mist

by Jakub

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72,690 reputation
3112280
bio website neocamera.com
location Montreal, Canada
age
visits member for 4 years, 10 months
seen 58 mins ago

Freelance travel photographer, photo tour leader and digital camera guru.

Travel has always been my passion and photography lets me share it with everyone.


1d
comment How can I prevent someone from zooming in to a photograph I send them?
This makes no sense at all. If you sent an image to someone viewing on a phone vs a 4K display, it would take completely different resolutions to zoom at 30%. The only thing you can do is send an image with the maximum details you want them to see.
Jun
5
comment What can I do when my Nikon D5200 gives an SD card error with every card?
Format the card. Even on another camera but make sure its completely blank. I've seen this happen on a Nikon 1 J5 just last week. it didn't like that the card had some hidden files introduced by a Mac.
Jun
4
comment When shooting in A-mode, at times the shutter speed becomes too slow to hand hold and shoot. How do I solve this?
Exactly. There is always a compromise and you need to be familiar with your camera to know what ISO you consider acceptable. After which obviously you would have to resort to another change such as a brighter aperture or camera support like a tripod.
Jun
2
comment How close are we to the sensor pixel size limit?
Intuitively I would say we hit the diffraction limit long before wavelength but I've not worked out the math.
Jun
2
comment Taking care of first DSLR
@Holmes.Sherlock - UV filters severely degrade the quality of images, particularly cheap ones. You can find in this site plenty of examples of people wondering what ruined their images with the answer being the UV filter. Unfortunately, sellers are eager to sell you these things because the profit margin is so high. For physical protection and to improve image quality, use a lens-hood in the orientation it was intended.
May
26
comment How does a DSLR's mirror mechanism work?
Have you searched online? I know I've seen this before, someone even filmed it working with an ultra-high-speed camera.
May
20
comment Why is my Sony A57 creating low res JPGs?
You are complaining about the resolution yet you mention storage space. What is in fact the resolution? You should see this in the Properties dialog or with any program that shows EXIF. If using nconvert just use nconvert -info <filename>.
May
18
comment Nikon D3200 18-105mm VR Lense and macro photography
@Lanka - It's just historical. Macro is from the lens' perspective (takes a small subject and makes it big) and Micro is fro the subject's perspective (takes photo of a small subject). A related term 'microscope' is some that lets you see small things.
May
10
comment How to take a photo of a close-up object without focus stacking?
Right, small sensors have a lower diffraction limit which is why most compacts max out at F/8. Some have slightly larger sensors and offer F/11 which maintains sharpness reasonably.
May
9
comment Adjust exposure compensation in manual mode?
It it only adjusts the displayed meter and does not actually change exposure, which is one reason why this can be confusing.
May
5
comment Are there cameras that autofocus during an exposure?
With exception to the Canon EOS 70D, they use Contrast-Detect AF which can easily be detected by the back and forth movement of the lens when out-of-focus. The camera measures contrast and moves the lens to see if it increases. If it decreases, it starts moving the lens the other way. Sony SLT cameras were designed exactly to avoid that problem. Canon fitted the 70D with phase-detection at every pixel so it can continuously adjust focus while filming. For video, one should really focus manually because any misfocus, including locking focus on the wrong subject, will be visible in the film.
May
1
comment Are Manfrotto Q6 Plates Compatible with Acratech GP-ss Ball-Heads?
@DanWolfgang - Sounds like you know more about this! There is no information saying that the plates and clamps are not designed to be interchangeable, which is easy to imply by how they are named. Perhaps you can contribute details as an answer?
Apr
29
comment Is the Gorillapod sturdy enough for super-zoom lens and long exposure?
That's a tough question because I own 5 cameras and am constantly rolling through review units! Overall, the Gorillapod works extremely well with Ultra-Zoom Bridge Cameras and Mirrorless with medium-sized lens. For a DSLR, my lenses are mostly too big to get good stability, even with the SLR-Zoom.
Apr
15
comment How many stops are there between middle gray and white point?
Not only this varies by camera (otherwise they would all have the same DR), it also varies by setting (Contrast, Tone, etc). So I'm going to say impossible to answer.
Apr
15
comment Why is the field of view of my lens narrower than my calculations show it should be?
The focal-length varies with focus and is usually quoted with focus at infinity. Try changing focus. Also, are you measuring the height from the sensor-plane?
Apr
4
comment Why does Nikon D3100 makes occasionallly noise and viewfinder shifts when pressing shutter button
Try disabling stabilization on the lens to see if that is the source. It's the only thing than can shift your view through the OVF.
Mar
15
comment Can I use Canon lenses on a Nikon dSLR?
Nice and thorough answer!
Mar
1
comment Inconsistent exposure with same settings--why?
Clouds moving???
Feb
28
comment Can changing metering mode change focus?
What were the selected shutter-speeds and ISO? Those are the variable we are missing.
Feb
26
comment How to match colors on photographs stitched together?
OK. EV stands for Exposure-Value, so equivalent ISO, Shutter-Speed, plus Aperture. That should make the exposure match but the colors will not if you were in Auto WB. Of course, since you shot RAW, that is only the default and you can override it at development time.