Silverlog Scan
Film Scanning DPI Calculator
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Work out the right scanning resolution for your target print size. Calculate DPI requirements for 15 film formats and 13 standard print sizes.
Silverlog Scan calculates the scanning resolution (DPI) needed to achieve your desired print size and quality from your film format.
HOW IT WORKS
Select your film format (35mm, 120, 4x5, etc.), choose a print size and output quality, and see the minimum scanning DPI required. The calculator accounts for the enlargement factor from negative to print.
FEATURES
• All common film formats (35mm, 6x4.5, 6x6, 6x7, 6x9, 4x5, 8x10)
• 13 standard print sizes from 4×6" to 40×60" (inches)
• Output quality from 150 to 400 DPI
• Required DPI calculation
• Output resolution in megapixels and pixel dimensions
• Estimated 8-bit and 16-bit file sizes
• Quality indicators
• Works offline — no internet connection needed
• Clean, focused interface
• Dark mode support
USEFUL FOR
• Setting up flatbed scanner resolution
• DSLR scanning resolution planning
• Understanding how much detail your film format captures
• Choosing the right scanner for your print size needs
• Optimising scan time vs quality tradeoffs
Part of the Silverlog photography toolkit. No account required. No data collected.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Updated for iOS 27, with the latest version of the app's frameworks. Everything works as before.
The developer, Simon Westgate, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Simon Westgate
- Size
- 42.2 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - iPad
Requires iPadOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
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- Copyright
- © SilverLog 2026