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AntDX316

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    AntDX316 reacted to dbmiller in A7Riv & 20mm fe 1.8G   
    Not sure. I don't know if the CA correction is only applied to the JPEG, or if it is also applied to the RAW file. If the latter, you could turn it off if you want to do it yourself. But it shouldn't be anywhere near as bad as the vignette correction can be for underexposed images as CA tends to occur in high contrast areas.
  2. Like
    AntDX316 reacted to dbmiller in A7Riv & 20mm fe 1.8G   
    It's a circular pattern applied to the RAW data before writing the RAW file in an attempt to fix vignetting. But it's not perfect, so it can cause what appears to be a circular banding - Especially when the exposure is heavily pushed in post.
  3. Like
    AntDX316 reacted to petrochemist in Can you use Extension Tubes to fit the 2.0x Teleconverter?   
    Yes you should be able to, at the expense of distant focus so it may only be relevant for 'close up' or even true macro shots.
    The focusing effect of the tubes would be just the same as if used without the TC.
    I've used a similar combination in other mounts. Using a 25mm tube & a 50mm lens with a 2X TC will end up with 1:1 & closer.
    Note if the TC can be added directly to the lens tubes give a different result on the other side of the TC.
    'Camera, tubes, TC, lens' doesn't equal 'Camera, TC, tubes, lens' 
  4. Like
    AntDX316 reacted to Pieter in Can you use Extension Tubes to fit the 2.0x Teleconverter?   
    Interesting thought, loosing a bit of focus distance at the far end wouldn't matter much when shooting macro. It would certainly help to increase the working distance. Keep us posted on your findings!
  5. Like
    AntDX316 reacted to LiveShots in Problem with A7R4 and deep colors. *Help please*   
    I cropped the images a little. The images are very under-exposed, so there is little room for improvement.
    Spot metering was used with no Exposure Compensation on the two images below
    I adjust the Highlights all the way down to -100 to get the colors to begin to show.
    I can't see from EXIF if DRO was used, it does affect the RAW files and gives more latitude to widely varying lighting conditions
    This is from first image screen shot from CaptureOne settings:


    This screenshot shows CaptureOne settings for the following image. I had to adjust color on the basketball as the highlights were blown out.  
     I am certain that others could probably edit these much better but this should give you a starting point


    My recommendation when taking shots like this is :
    1. Turn on DRO,  as mentioned above it DOES affect RAW files and gives more latitude on color correction etc.
    2. Use AEL , focus on an area that is mid-lighting and toggle AEL this may help to give a median baseline for lighting, then recompose, focus and take the shot.
  6. Like
    AntDX316 reacted to LiveShots in Problem with A7R4 and deep colors. *Help please*   
    Here's another way of editing, just changing Exposure Brightness and Shadow


  7. Like
    AntDX316 reacted to Pieter in Can you use Extension Tubes to fit the 2.0x Teleconverter?   
    It might work but you'll loose infinity focus. Some even use an extension tube to stack two 2× TC's.
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