Resolution & Focus Charts

Fiddleheads with Resolution

• FiddleHeads features a unique double spiral designed with help and testing from Steve Lucas at VER in LA.
• FiddleHeads produces what has been described as a visual “pop” at the precise point of optimum focus
• Includes framing lines for 2.35, 1.85 and 90% of 1,85.
• with corner resolution wedges up to 1600 TV LPPH

Fiddleheads^®

• FiddleHeads features a unique double spiral designed with help and testing from Steve Lucas at VER in LA.
• FiddleHeads produces what has been described as a visual “pop” at the precise point of optimum focus
• Includes framing lines for 2.35, 1.85 and 90% of 1,85.

SineZone^® – 4K Sinusoidal chart

Besides showing resolution, SineZone also serves as a visual tool, allowing user to identify chroma moire. This useful chart also identifies aliasing, which shows as circles within the pattern. Limiting resolution can be measured by calculating linear distance from center of chart along a radius to the point at which detail has lost enough contrast to be no longer visible.
Warning: This chart has been designed to be very hard for any camera to reproduce accurately.

MultiBurst

• Central horizontal and vertical resolution gratings.
• Continuous resolution sweeps from 50 to 1200 with identifier every 100 TV LPPH
• Spaces every 200 TV LPPH – simplify analysis when using a waveform monitor
• Corner gratings – useful for checking lens performance.
• Zone plates – helpful in identifying aliasing.

MultiBurst SquareWave

• Central horizontal and vertical resolution gratings.
• Resolution blocks from 50 to 1200 TV LPPH
• Corner gratings – useful for checking lens performance.
• Zone plates – helpful in identifying aliasing.

Backfocus

• Exceedingly high dynamic range, brilliant white and dense black unique “bow-tie” stars
• Plus demi-stars for setting critical focus in center and edges

Expanded BackFocus

• Oversized and expanded, DSC’s unique “bowtie” star
• Exceedingly high dynamic range, brilliant white and dense black
• For 4:3 and 16:9, 56 crisp and sharp wedges for setting critical focus

BackFocus & Resolution

• DSC’s unique “bow-tie” star with resolution wedges
• Corner resolution wedges up to 1600 TV LPPH for checking camera frequancy response and lens quality
• Frame and focus chart for projector alignment

MegaTrumpet 12

• 16 hyperbolic resolution trumpets 500 to 2000 TV LPH
• 16 solid black wedges interspersed with hyperbolics (checking back focus)
• Corner wedges for checking resolution and chromatic aberration

The Wringer

• Used to examine chrominance resolution
• Segmented zone plates reveal diagonal resolution and aliasing artifacts
• Each zone plate is divided into four quadrants, containing vertical, horizontal and diagonal components

This chart is designed for examining chrominance resolution. The Wringer reveals diagonal resolution and aliasing artefacts that are not typically seen using vertical and horizontal wedges. Since diagonal distortions are likely to be mirrored in both scanned dimensions, and to conserve space, . The 18 zone plate quadrants have spatial frequency sweeps from 200 to 1000 TV LPPH  – framing to half the chart’s width yields 100 to 500 TV LPPH