Focusing Aids FRESNEL LENS 4x5″/10x12.5 cm 461.76 Brightens the image on the focusing screen, making it considerably easier to view that image, especially with short fo- cal length lenses. Format masks from Set of Masks 534.16 can be inserted in the fres- lens holder without having to remove the fresnel lens. Easy to snap into Metering Back 4x5″/ 10x12.5 cm 462.16 or into Holder/Focusing Back 4x5″/10x12.5 cm 461.36. FRESNEL LENS 5x7″/13x18 cm 535.17 FRESNEL LENS 8x10″/20x25 cm 535.58 Features similar to those of the of Fresnel Lens 4x5″/10x12.5 cm 461.76. The 535.17 (dimensions: 128x170 mm) fits in Metering Back 5x7″/13x18 cm 462.17 and in any 5x7″/13x18 cm Sinar Holder/ Focusing Back. The 535.58 (dimensions: 216x265 mm) fits in Metering Back 8x10″/20x25 cm 462.58. SET OF MASKS 534.16 Transparent yellow masks for outlining the image format on a focusing screen when several formats are being used. Fits in Fresnel Lens Frame 461.76. Includes masks for 6x6, 6x7, 6x9 and 10x12.5 cm formats. MAGNIFIER 4x 531.11.001 Aspherical color-corrected focusing mag- nifier with 4x magnification. Viewing area: 45 mm (13/4″) ∅. Individual viewing sharpness can be ad- justed with a focusing ring. • Can be used for checking the image on a focusing screen and also for viewing color transparencies or reflection prints. BINOCULAR MAGNIFIER 471.21 Can be attached to any Sinar bellows with a 4x5″/10x12.5 cm frame for viewing the image on the focusing screen. With the magnifier swung in, the image on the screen is magnified 2x. In order to avoid false measurements, Binocular Light Hood 531.51 is required for shielding the focusing screen from extraneous light during TTL exposure metering. • Joint Rod 472.51 is recommended for attaching the bellows. BINOCULAR REFLEX MAGNIFIER 4x5″/10x12.5 cm 531.12 Permits viewing of a right-side-up image on the focusing screen with a choice of normal size or 2x magnification. The mir- ror is adjustable for best possible viewing of the image on the focusing screen. This is particularly important when it is being used in conjunction with a fresnel lens. Requires the use of Binocular Light Hood 531.51. For farsighted persons, a Pair of Loupes with 4.25 Diopters 531.12.001 is available. BINOCULAR LIGHT HOOD 531.51 For viewing the image on a focusing screen with Binocular Magnifier 471.21 or Binocular Reflex Magnifier 531.12 without the interference of extraneous light. Has a flap to prevent stray light from affecting the accuracy of TTL exposure measure- ments. PAIR OF LOUPES 4.25 Diopters 531.12.001 For insertion into Binocular Magnifier 471.21 or Binocular Reflex Magnifier 531.12 as eyesight correction for far- sighted persons. Special tools and instructions for installa- tion are included.

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