Using Fujifilm x-T4 or GFX 100s Cameras to Take Stacks
The x-T4 is an APSC camera (smaller sensor). The GFX 100s is a medium format camera with a large sensor. This discussion is preliminary. Both cameras, in spite of being very different share a nearly identical menu system and the same approach to generating stacks. The stacking app only supports 3 lenses on x-T4 cameras so far. Other Fujifilm cameras, particular the GFX 100 probably work in the same way.
The Fujifilm camera stacking is similar to Panasonic and Nikon. Two menu parameters STEP (1-10) and IMAGE COUNT determine the number of images and the focus distance between them. Input to the app includes two distances and the size of the additional circle of confusion.
The Fujifilm cameras have an additional stacking features, the AUTO mode. The use specifies an A and B distance
point using the manual focus of the lens and the camera sets up the parameters for a stack between those two points. There is no adjustment for the step between photos when using the auto mode. Presumably Fujifilm is using a fine step.
The rotary switch on the camera must be in M or manual and the DRIVE must be bracketing for a stack to run triggered by the shutter button.
A deficiency of the Fujifilm cameras is a lack of flexibility in specifying the distance step between photos (STEP). The biggest distance step allowed (STEP=10) is still quite small, a level appropriate for the most exacting work. This means that stacks are bigger than necessary, taking longer to acquire in the field and longer to process on the computer.
A work around on the computer is to decimate the file of images, taking every other one. This essentially doubles the step between images. The stacking app gives advice when decimation is useful.
A
The x-T4 is an APSC camera (smaller sensor). The GFX 100s is a medium format camera with a large sensor. This discussion is preliminary. Both cameras, in spite of being very different share a nearly identical menu system and the same approach to generating stacks. The stacking app only supports 3 lenses on x-T4 cameras so far. Other Fujifilm cameras, particular the GFX 100 probably work in the same way.
The Fujifilm camera stacking is similar to Panasonic and Nikon. Two menu parameters STEP (1-10) and IMAGE COUNT determine the number of images and the focus distance between them. Input to the app includes two distances and the size of the additional circle of confusion.
The Fujifilm cameras have an additional stacking features, the AUTO mode. The use specifies an A and B distance
point using the manual focus of the lens and the camera sets up the parameters for a stack between those two points. There is no adjustment for the step between photos when using the auto mode. Presumably Fujifilm is using a fine step.
The rotary switch on the camera must be in M or manual and the DRIVE must be bracketing for a stack to run triggered by the shutter button.
A deficiency of the Fujifilm cameras is a lack of flexibility in specifying the distance step between photos (STEP). The biggest distance step allowed (STEP=10) is still quite small, a level appropriate for the most exacting work. This means that stacks are bigger than necessary, taking longer to acquire in the field and longer to process on the computer.
A work around on the computer is to decimate the file of images, taking every other one. This essentially doubles the step between images. The stacking app gives advice when decimation is useful.
A