this post was submitted on 22 Jun 2024
10 points (91.7% liked)

Photography

4905 readers
20 users here now

c/photography is a community centered on the practice of amateur and professional photography. You can come here to discuss the gear, the technique and the culture related to the art of photography. You can also share your work, appreciate the others' and constructively critique each others work.

Please, be sure to read the rules before posting.

THE RULES

  1. Be nice to each other

This Lemmy Community is open to civil, friendly discussion about our common interest, photography. Excessively rude, mean, unfriendly, or hostile conduct is not permitted.

  1. Keep content on topic

All discussion threads must be photography related such as latest gear or art news, gear acquisition advices, photography related questions, etc...

  1. No politics or religion

This Lemmy Community is about photography and discussion around photography, not religion or politics.

  1. No classified ads or job offers

All is in the title. This is a casual discussion community.

  1. No spam or self-promotion

One post, one photo in the limit of 3 pictures in a 24 hours timespan. Do not flood the community with your pictures. Be patient, select your best work, and enjoy.

  1. If you want contructive critiques, use [Critique Wanted] in your title.

  2. Flair NSFW posts (nudity, gore, ...)

  3. Do not share your portfolio (instagram, flickr, or else...)

The aim of this community is to invite everyone to discuss around your photography. If you drop everything with one link, this become pointless. Portfolio posts will be deleted. You can however share your portfolio link in the comment section if another member wants to see more of your work.

founded 4 years ago
MODERATORS
 

I have a Canon EOS R50, a mirrorless camera, which also seems shutterless - If I take pictures of, for example, an airplane with a spinning propeller, will I still get that "strange rubber propeller" effect? 1) the camera may have a shutter and I just don't recognize it or 2) the sensor is read in such a way as to produce the effect.

you are viewing a single comment's thread
view the rest of the comments
[–] ada@lemmy.blahaj.zone 3 points 4 months ago (1 children)

The r50 can do electronic shutter or second curtain shutter, but it doesn't have a global shutter or full mechanical shutter.

So, some ELI5 background on camera sensors. Most sensors read the data from the sensor pixel by pixel, line by line. So what that means is that a small amount of time passes between reading the top lines of the sensor and the bottom lines of the sensor. Most of the time, this doesn't make much difference. But for fast moving objects (or if you're panning the camera really fast) it means that the scene can change during that passage of time, which is what gives you trains that lean to one side and propellers that look like they're made of rubber.

To get around that, you can use a physical shutter. Cameras with "second curtain" shutters physically close off the light to the sensor before they start reading data from the sensor. This means that even though time passes between reading the top and the bottom of the line, the light captured by the sensor does not change during that time, and so the wobbly subjects don't happen.

A camera with a full mechanical shutter puts a physical shutter at the beginning of the process and the end, but the gains over second curtain only are negligible.

In theory, there is also "global shutter" which is a camera that reads the entire sensor at once, but in practice, this technology doesn't exist at the consumer mirrorless camera level.

Electronic shutters aren't all bad though, because they let you do faster shutter speeds than are possible with physical elements, and they let you do higher fps when shooting in burst mode. And electronic shutters are also silent

[–] waspentalive@lemmy.one 1 points 4 months ago (1 children)

So with the 2nd type shutter, The sensor is exposed and then the shutter closes, the sensor is read in darkness so the image on it does not change. Then the shutter opens and I start seeing what the camera sees in the view-finder-eyepiece?