Jump to content

Recommended Posts

x
22 minutes ago, wolan said:

Hi

does the SL2-S close the shutter when you shut down the camera to change the lens, like the M10 does?

Thank you

Cheers.

 

No, the shutter remains open. Despite this, the sensor on SL-bodies I have used have had much less dust and dirt than on the M-sensors... Also remember that the M-bodies do the light metering directly from the shutter, so M- and SL-bodies are different in this respect. 

 

Edited by helged
  • Like 1
Link to post
Share on other sites

Mmm... this is a huge problem I have with the Nikon Z, mainly because I use a lot of vintage lenses and during a shooting I oft change lens. There is no shooting where I do not end up with dust specs on the pictures, sometimes with no way to recover the picture in post.

Link to post
Share on other sites

I also have more dust on my M sensor than my SL and SL2-S. 

Having the shutter remain closed offers no benefit I can see. The risk of damaging the shutter is higher than the sensor and any dust on the shutter would move around the inside of the camera as soon as you open the shutter. 

Link to post
Share on other sites

I used to have dust and fluff between the sensor and the glass cover protecting it for my SL (Typ601).  No amount of blowing or wiping could get rid of it.  One tiny hair was right in the upper middle of the frame, so it would always show up on f8 or f11 shots which had sky.

Luckily Capture One offers an Adjustments panel with "Spot Retouch" tool.  You can even save presets for your camera.  Used this for a couple of years until I finally got sick of it and sent the camera off to Leica to be disassembled and cleaned.

So… you can live with dust spots.  It just depends on the software you use 🙃

Edited by AZN
Link to post
Share on other sites

I've been using digital cine cameras since day one which is roughly 12 years ago. None of them have some automatic device to protect the sensor when changing lenses, which happens all the time on a set. For some reason, dust was never an issue. But as with film cameras before, a protective handing of the open mount makes sense, e.g. mount caps, moving to a dust-free location for swapping lenses etc.

  • Like 1
Link to post
Share on other sites

Advertisement (gone after registration)

When I change lenses, I make sure that I reduce the chance of dust getting into the chamber. Once the dust gets into the chamber, it will get on the sensor, regardless of whether the shutter is closed or not. I do not notice any difference between my DSLRs (closed shutter) and mirrorless (open shutter).
A more significant issue may be that SL2's do not have sensor vibration to get rid of dust at startup or shut-down.

Link to post
Share on other sites

The real pitty with this is that it is still a problem and that roughly 15 years ago I already owned Olympus FT stuff where dust was a non-issue due to automatic dust removal via vibration. 

This is something I really don't get. The SL2-s a bit less of a dust magnet than the M10P or even worse the M240 (despite having a closed shutter when changing lenses), but it still is a dust magnet in the magnitude of black hole. 

However, it's easier to blow out fast as you don't have to turn the camera into a cleaning mode or so and, and that's much better than with the M10P, the dust seems not to stick so heavily on the SL2-s sensor. A gentle blow with a Gitzo Rocket is good enough. So far there was no need at all for wet cleaning. 

BTW: I assume that's the main reason why Peter Karbe says you should use your lens wide open - dust on the sensor is not so visible :D

 

Cheers

Daniel

Link to post
Share on other sites

Right. I also recall reading (can't find the source) that Fuji GFX 50R (and I sure the other 3 GFX cameras too) have sensor glass cover designed in way to minimize dust - and my experience with it was literally dust free.

Edit: found the source:

https://fujifilm-x.com/en-us/stories/gfx-technologies-2/

People often forget about the cover glass of a mount. This glass is meant to protect and to shake dust off the sensor. The cover glass is placed in the furthest position possible from the sensor.
Why far away? The closer the dust is to the sensor, the worse for the image quality. The dust becomes more visible if it is closer to the sensor surface as it gets into the depth of field.
The cover glass should be placed as far away as possible from the sensor. If there is a mirror box, then there is minimal room to move. But this is possible for G Mount as it is comprised of a mirrorless structure. The cover glass is placed 9mm away from the sensor surface. If you know about mount design, then we are certain that you will be surprised with the figure.

Edited by ravinj
Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...