Jump to content

erik_christensen3

PhotoNet Pro
 View Profile  See their activity

  • Posts

    742

  • Joined

  • Last visited

 Content Type 

Posts posted by erik_christensen3

    Nikon D850 - lost images from Sony XQD cards

    in Nikon

    Posted

    I have the last couple of days followed a discussion on another forum regarding loss of photos from a Sony XQD card used with a Sony card reader. The photographer had seen each of the photos immediately after they were taken, but when transferring to the computer several photos were missing. Put the card back into the D850 and they were gone. I was positive it was a computer software issue, however, it turns out that it is a general problem – I have never heard about it. Anyone here have experience the same? I normally use the SD card for overflow, but will in future use it as backup instead, plus I am considering getting a couple of XQD cards more – I do not need the fast CFexpress cards.

    Focus shifting - D850

    in Nikon

    Posted

    The power of your computer will have an impact on the speed of the process. I have a Windows i7-6700 with 16 GB of RAM. My camera is a D750 which creates 24 MP raw images so the files for a D850 will be even larger, unless you create JPEG files. When I check the performance of the computer the RAM is maxed out on large stacks so more RAM might improve the speed of the process. When I stack a few macro images, 5 to 10, the stacking process takes a few minutes. I have stacked as many as 80 macro images and that process took about 30 minutes. However, it is a rather simple operation. I created a macro, or Action in Photoshop. I click on the Action button and the computer does the rest. I step away from the computer for a while and when I come back the stacked image is finished.

    I have also tried Zerene but I have found that Photoshop does a better job in my experience.

     

    I have i5-4690 16gb RAM only and use NEF full size which is about 55-60MP and using Helicon as plugin for LR. I was just not aware that it could take that long time, but as you say leave the computer and make a fresh cup of coffee may sweeten the process. I assume it will take some time before I am on the 80 macro images.

    Focus shifting - D850

    in Nikon

    Posted

    Ed Ingold – Next time I will try the manual stacking and take max 4 frames with focus of foreground, 1-2 at middle and 1 far. I have never used AF on the shutter release only on rear button. I used various settings of the above and special software for stacking of the 9 frames, and the first 3 attempts ended up with like “not everything saved”. It turned out, that my computer had not finished the operation after 10 min or so. I just image a macro fan taking 100+ he can go on holiday during the operation. I have previously used a focus rail for flowers, and even that it is good, one has to be very patient. Nearly all macro/close up of flowers are indoors, as it is always windy when it is good light, where I am living. Thank you for your comments.
    • Like 1

    Focus shifting - D850

    in Nikon

    Posted

    I tested it this morning even that it was a little haze, and I selected 9 frames 1 width and it decided to take 12 frames. Another also with 9 frames but width 7 and it took 10 frames. the attached is with the latter setting, it is a little too dark due to the haze. I will find a better location later, but I am travelling one week now.

     

    1508824022_2020-03-0321-40-25(BRadius49Smoothing4).thumb.JPG.09123efda5354eb9e5cc56096fbc6c17.JPG

    Focus shifting - D850

    in Nikon

    Posted

    A guy told me this morning, that he had experienced setting the number of shots to 15 frames, but the camera actually took 50 for what ever reason" I then tried a landscape photo a couple of hours ago just to check, and I set frames to 9 and got 12 ! My example did not have any close foreground - relative steep mountains, but I will try to find better location during the forthcoming week.

    Focus shifting - D850

    in Nikon

    Posted

    The D850 focus shift is very much similar to the Z6's. Begin your focus from the closest point, then set the number of shots, etc. and let the camera shift focus from near to far. To be safe, begin your focus point a little closer than your closest focus point.

     

     

     

    Most people use focus shift for macro photography because the depth of field is shallow when the distance is close. For landscape photos, especially if the distance of subject matter is far, depth of field is not normally a problem unless there is a close subject in the foreground.

     

    I tested it on a macro subject after seeing your post - I can see the difference in sharpness. However, it is a cumbersome process as one needs to run the images through a focus stacking software. I am hoping Nikon will add a feature to do this in-camera sometime.

    There are people making a living, that Nikon is not doing it in camera, so I had to get a dedicate software for that. Nikon may be able to make in camera for landscape, but today you may select 999 frames, and without being a IT man, I assume that requires a lot of internal computer power and more powerful batteries.

    Focus shifting - D850

    in Nikon

    Posted

    Thank you very much for your comments. I have only tried a coupe of times - near to far - but could hardly see any difference. Majority of my landscape photos have been from Vietnamese mountains, where you are standing on the edge with a couple of hundred meters down. I have some other locations in mind. Thanks again.

    Focus shifting - D850

    in Nikon

    Posted

    Using focus shift - after selecting xx frames, where do you set the focus point at the fore-ground or background icw landscape and do you do the same for macro?

    I asked previously on another site and got different responses.

×
×
  • Create New...