In with conjunction previous other Fujifilm X system testing

Birding Photography with Fujifilm X-T4 | liewwk Nature

Birding Photography with Fujifilm X-T4 | liewwk Nature

One of the basic requirements of the camera, how much do we able to from Shadow & Highlight (under & overexpose).

Here are some basic tests

– Fujifilm X-T4, FUJINON XF100-400mmF4.5-5.6 R LM OIS WR

– Handheld

– Same ISO, F-number, Shutter Speed, Auto WB

– Adobe Camera RAW 12.4, same recovery and other parameters for the same test

*** I found the Dynamic Range setting not just affect JPEG output, but also affects the data inside the RAW files. So testing also included DR100 (off), DR200 (suppose reserve highlight exposure 1 stop) & DR400 (suppose reserve highlight exposure 2 stop)

But check out the RAW files recovery result below !!! it is some magic that happens !!!

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1. Highlight Recovery Test

1A. Highlight Recovery Test: Dynamic Range setting

– make sure of in Camera setting to protect Highlight details

– Dynamic Range 100 (off), 200 (protect 1 stop highlight information) & 400 (protect 2 stops highlight information)

CAMERA JPEG output

Even with the direct JPEG output, the highlight details have been protected (DR200 1 stop and DR400 2 stops). But let’s have a look at the RAW file recovery

LEFT: DR100

CENTER: DR200

RIGHT: DR400

1B. Highlight Recovery Test: RAW files recovery

Test1: Highlight recovery from RAW files

– ISO1000, F5.6, 1/15 – this makes the picture +4 (4 stops overexpose)

– Adobe Camera Raw recovery. [Highlight -100%, Exposure -3.00]

Test1Bi. Highlight recovery, DR100 (DR off)

– All setting same as mentioned above

– DR100

– LEFT: Direct JPEG from Camera

CENTER: RAW

RIGHT: recovery setting as above and save as JPEG

Test1Bii. Highlight recovery, DR200

– All setting same as mentioned above

– DR200

– LEFT: Direct JPEG from Camera

CENTER: RAW

RIGHT: recovery setting as above and save as JPEG

Test1Bii. Highlight recovery, DR400

– All setting same as mentioned above

– DR400

– LEFT: Direct JPEG from Camera

CENTER: RAW

RIGHT: recovery setting as above and save as JPEG

Here’s come the magic of the RAW file and the Dynamic Range settings !!!!

– Look at the right face of the toy & background paper beg

– the DR400 not just protect highlight data in JPEG but in the RAW file, preserve more than what we expect (3 stops + 100% hight recovery)

2. Shadow Recovery Test

– 5 stops underexpose

– ISO800, F5.6, 1/8000

– DR100, 200, 400

– below are JPEG direct output from Camera

Test2A. Shadow recovery

Test1: Highlight recovery from RAW files

– ISO800, F5.6, 1/8000

– this makes the picture -5 (5 stops underexpose)

– Adobe Camera Raw recovery. [Exposure +5.00]

As the discussion of Dynamic Range is to protect Highlight data of the pictures. But I still go ahead with my test with DR100, 200 & 400

Test2Ai. Shadow recovery, DR100

Test2Ai. Shadow recovery, DR200

Test2Ai. Shadow recovery, DR400

For the 5 stops Shadow recovery, most of the details of the focused object still intact.

But when we turn on the Dynamic Range (DR200 & 400) gives an impact on the RAW files. Something really weird where DR400 actually give negative impact which produces more color noise and purple tint when exposure recovery

So we need 2 settings for Highlight & Shadow recovery