Hasselblad Phocus v3.6 - Focus Bracketing Quick Look

[Steve Hendrix]

I spent some time with the Focus Bracketing tool this past weekend, part of the new feature set for Phocus v3.6.

Short overview is below in the link:

https://www.captureintegration.com/ci-quick-take-hasselblad-tethered-focus-stack-in-phocus-v3-6/


Steve Hendrix/CI

 

[bab]

So you used 1.574" as the near and far point and it captured the nose and back inside of the object in sharp focus? Seems the object has a depth greater than 1.574" (.04m) so what actually happened in the capture? I would suspect that 19 shots would equal 19mm. I have not tried myself yet but I plan to in the near future. I was thinking the 45-P XCD may have contributed to the minimal amount of step needed rather than using a macro lens at a closer to sensor plane difference filling the sensor with more of the object. In my practice using a 120mm macro on the H6 getting about 50% of the sensor filled with a object of 25mm front to back it requires 32 images to acquire focus thru. Switching to a camera with movements would cut down the needed steps to about 18. I have taken more than 15k images with Automator the free utility with Mac and have successfully avoided back surgery.

 

[Steve Hendrix]

So you used 1.574" as the near and far point and it captured the nose and back inside of the object in sharp focus? Seems the object has a depth greater than 1.574" (.04m) so what actually happened in the capture? I would suspect that 19 shots would equal 19mm. I have not tried myself yet but I plan to in the near future. I was thinking the 45-P XCD may have contributed to the minimal amount of step needed rather than using a macro lens at a closer to sensor plane difference filling the sensor with more of the object. In my practice using a 120mm macro on the H6 getting about 50% of the sensor filled with a object of 25mm front to back it requires 32 images to acquire focus thru. Switching to a camera with movements would cut down the needed steps to about 18. I have taken more than 15k images with Automator the free utility with Mac and have successfully avoided back surgery.

The distance that was shown in the Focus Bracket Tool was 0.4m, not 0.04. The distance to the far point of the subject was about 370mm, which is in the ballpark of 0.4m. The length of the Corgi subject near to far was about 140mm or so. I just happened to have the 45-P as I had intended to perform some comparatives with the Fuji GF 45mm lens. But I got side tracked a bit and decided to dig into the Focus Bracketing feature. One nice aspect about the 45-P (in addition to the small size and great price) is that it can focus very closely, so even for this little project shooting a single product on a tabletop at close distance, it worked well.


Steve Hendrix/CI