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J-Camera

Lit close-up camera & loupe
YUAN YU NIU · Utilities
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App info

Developer
YUAN YU NIU
Category
Utilities, Photo & Video
Released
Sep 16, 2026
Version
1.0 (Sep 16, 2026)
Price
Free
Size
5.1 MB
Requires
iOS 16.0
Age rating
4+
Languages
English, Japanese, Korean, Simplified Chinese, Traditional Chinese

In-app purchases

none
Current prices, App Store US.

Release date

The release date was moved 1 time before launch.

About J-Camera

J-Camera is an inspection tool, not a general-purpose camera. It is built for one job: looking closely at small things — a solder joint, a hairline scratch, a serial number, a fabric weave — with the torch on and real control over focus. SPLIT-IMAGE FOCUS A circle sits in the centre of the frame. Inside it, the live image runs through an edge-enhancement formula and is shown as four quadrants at four different strengths. Bright scenes need a gentle setting; dim ones need a strong one — instead of guessing, you see all four side by side and pick the one that reveals detail. Press and hold to cycle through five formulas. FREQUENCY HISTOGRAM A logarithmic frequency plot, not a brightness histogram. When the right-hand side stays high, fine detail is still present — which is what "in focus" actually means. It is the difference between believing you are sharp and knowing it. FOCUS YOU CAN…
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