Site Sponsors
Results 1 to 5 of 5

Thread: Some A77 Macros...and dust!

  1. #1
    Member
    Join Date
    Oct 2009
    Posts
    82
    Post Thanks / Like

    Some A77 Macros...and dust!

    Asked for some advice a while back and settled on the A77 for macro photography.

    Gotta say I love the handling of the A77 for this (and other) kind of shooting! I have the A77 & 16-50, and also picked up a Tamron 60mm macro lens. Out of the box, tamron on the camera, and first shots have HUGE dust spots!

    So best practice for taking them off? Are they on the translucent mirror or the sensor? Can I tell? I'm familiar with sensor cleaning, wet and dry, but wonder about any SLT variations...

    Thanks for input on cleaning. Some early macro pics, raw converted in lightroom with no PP yet...

    -Jeff






  2. #2
    Super Duper
    Senior Member
    Vivek's Avatar
    Join Date
    Apr 2008
    Location
    Netherlands
    Posts
    13,604
    Post Thanks / Like
    Images
    21

    Re: Some A77 Macros...and dust!

    Given that you know how to clean the surfaces. First thing to do would be the pellicle mirror. But I think the dust is on the sensor.

    If you do not want to see the dust, open up the aperture on the lens. When you approach diffraction limits, every blemish in the optical path will show all the time.

    Given that limitation, you may want to rethink the idea of using the A77 for close-ups and or macros.

  3. #3
    Super Duper
    Senior Member
    etrigan63's Avatar
    Join Date
    Nov 2007
    Location
    Earth, Sol System (near Miami, FL)
    Posts
    2,501
    Post Thanks / Like
    Images
    21

    Re: Some A77 Macros...and dust!

    As I understand it, the mirror can be manually moved out of the way so that the sensor can be cleaned. Check your fine manual.
    Carlos Echenique | Carlos Echenique Photography |Olympus OM-D E-M1 MK II | Olympus Pen-F - M.Zuiko 17mm f/1.8, M.Zuiko 25mm f/1.8, M.Zuiko 45mm f/1.8, Rokinon 12mm f/2 NCS, M.Zuiko 75mm f/1.8, M.Zuiko 12-40mm f/2.8 PRO, M.Zuiko 40-150mm f/2.8 PRO

  4. #4
    Senior Member pegelli's Avatar
    Join Date
    Dec 2010
    Location
    Belgium
    Posts
    2,125
    Post Thanks / Like

    Re: Some A77 Macros...and dust!

    I think these spots are too sharp to be on the pellicle mirror. To be so sharp they must be close to the sensor, so probably on the AA filter. I hope it's not deeper down in the sensor, because then you'll be looking at a replacement camera (or repair)

  5. #5
    Senior Subscriber Member
    Join Date
    Nov 2007
    Location
    San Francisco, CA
    Posts
    1,306
    Post Thanks / Like

    Re: Some A77 Macros...and dust!

    Did you try the automatic sensor cleaning?

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •