StereoPhoto Maker vs Photoshop for Stereo Pairs: The Honest Split of Work
“Can’t I just do stereo in Photoshop?” You can assemble a pair in any image editor — paste two photos side by side and you have a file. What a general editor cannot do is the stereoscopic part of the job, and that is the part that decides whether the result is viewable.
What Photoshop does not have
- No stereo auto alignment. Nothing in Photoshop measures vertical disparity, rotation, size and keystone error across a pair and corrects them as stereo geometry. You would nudge layers by eye — the slow, error-prone way SPM’s alignment exists to replace.
- No stereo window concept. Window placement is a stereo-specific judgement with its own artefacts (window violations); a general editor has no model of it.
- No stereo containers or batch. MPO/JPS round-tripping and folder-scale pair conversion (SPM’s Multi Conversion) have no equivalent.
What Photoshop is genuinely better at
Retouching, compositing, colour grading, RAW development and print preparation at professional depth. If a frame needs a distracting object removed or serious colour work, Photoshop (or another full editor) is the right tool — on each eye’s image, before the pair reaches SPM.
The working split
- Develop and retouch the two raw frames in your full editor.
- Align, window and convert in StereoPhoto Maker.
- Export viewing copies from SPM; keep the SBS master.
That division is not a compromise — it is how the tools were designed. SPM is freeware; the expensive subscription buys you the retouching bench, not a stereo one.
If you do need the retouching bench, Photoshop is the subscription this workflow pairs with — SPM itself stays freeware.
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