Sony 90mm f\2.8 Macro G Lens Archives

Longhorn Beetle Macro Focus Stack

November 23, 2025November 22, 2025 photog Photo Study, Photography focus bracketing, focus stacking, Long Horned Beetle, macrophotography, Sony 90mm f\2.8 Macro G Lens

So you take the Sony A7IV camera with the latest firmware update and you attach the Sony 90mm f/2.8 Macro G Lens and set the camera for focus bracketing using the small interval focus change and a hundred exposures with an f/8 aperture and ISO 100 quality and you get 100 files that look this bad:

Then you put the 100 files through a photo editor to get the exposure just right and process them in another piece of software that combines them into a focus stack and get this:

And if you crop that stack photo you’ll find quite a lot of detail:

Admittedly, this isn’t the loveliest insect photo on record but you have to admit it has a lot of detail.

Name That Tooth – The Answer

March 8, 2020March 27, 2020 photog Photography Affinity Photo, focus stacking, macrophotography, Sony 90mm f\2.8 Macro G Lens, Sony A7 III, spider, tarantula

“There agelong she had dwelt, an evil thing in spider-form, … and she served none but herself, drinking the blood of Elves and Men, bloated and grown fat with endless brooding on her feasts, weaving webs of shadow; for all living things were her food, and her vomit darkness. … But none could rival her, Shelob the Great, last child of Ungoliant to trouble the unhappy world.”

I can’t stump you folks.

I’ve got to say, this photo stacking has amazing capability. The detail is impressive and the stitching is imperceptible. I tried stacking jpegs and then raw files. I thought the composite made from raw files looked very slightly better but it took an hour and a half to process. That’s more than double the jpeg time.

Focus Stack – Dried Flower

January 11, 2020January 11, 2020 photog Photography focus stacking, macrophotography, Microsoft Affinity Photo, Sony 90mm f\2.8 Macro G Lens, Sony A7 III

When is a dried flower better than live spider? When you’re doing a focus stack. When the subject doesn’t move it comes out a lot better.

The first three photos are three of the 136 photos that I stacked together. Notice depth of focus in each only comprises a small fraction of the total image.