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Box of 25 sheets of 4x5 inch black and white infrared film

ROLLEI

Rollei Infrared 4x5" ISO 400 B&W Negative Film 25 Sheets #8104100

SKU CH-BZKD-C5X07

Black-and-white infrared sheet film, ISO 400 at 720 nm, 25 sheets of 4x5" polyester base with 160 lp/mm resolution and LE 500 archival stability

  • Infrared sensitivity to 820 nm enables creative scientific imaging
  • ISO 400 at 720 nm captures detail in challenging light
  • Resolving power of 160 lp/mm delivers very fine grain sharpness
  • Polyester base rated LE 500 ensures long-term archive stability
  • 25 sheets of 4x5" format suit large-format experimental work

What it is

Rollei Infrared 400 is a black and white infrared negative film supplied as twenty-five sheets of 4x5 inch format. It is designed for experimental, creative and scientific photography, offering sensitivity up to 820 nm and an ISO 400 rating for 720 nm work.

Who it suits

Photographers seeking high contrast, very fine grain and excellent sharpness with a resolving power of 160 Lp/mm will appreciate this material. It is not for anyone who cannot process film in complete darkness or who needs a film that can be loaded in normal light without careful handling.

Under sustained use

The polyester base provides archive stability rated at LE 500 and the special coating improves film transport in large-format holders. Extended sessions benefit from wide exposure latitude and a high exposure reserve across varied lighting and climatic conditions.

Highlights

  • Infrared sensitivity to 820 nm enables creative scientific imaging
  • ISO 400 at 720 nm captures detail in challenging light
  • Resolving power of 160 lp/mm delivers very fine grain sharpness
  • Polyester base rated LE 500 ensures long-term archive stability
  • 25 sheets of 4x5" format suit large-format experimental work

Specifications

No published specifications for this item yet.

Questions about this item

What large-format holder or camera back do I need for the 4×5″ sheets?

You need any standard 4×5-inch sheet-film holder or a 4×5-inch camera back that accepts individual sheets.

Can I load and unload the ISO 400 film in dim indoor light without fogging?

Yes — careful handling allows insertion and removal under subdued light, but full processing must be done in total darkness.

How can I confirm the 160 Lp/mm resolving power is being achieved after development?

Scan the negative at high resolution and check that fine detail reaches the rated 160 line-pairs-per-millimetre sharpness.

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