ICE CO 77mm ND100000 ND 16.5-Stop Optical Glass Filter - Solar & Long

In this review the ICE CO 77mm ND100000 from Desmond Photographic is evaluated as a specialist neutral density filter for photographers who need extreme light reduction. The bottom line: this filter is for people doing solar imaging or ultra long exposures where a massive 16.5 F-stop cut is required, and its biggest selling point is the combination of true optical glass and heavy nano multicoating that preserves image quality while blocking intense light. It reads as a purpose-built tool rather than an everyday variable ND.

Key Features

• 16.5 Stop Light Reduction: The ND100000 density provides extreme attenuation for solar photography and very long exposure work, allowing controlled exposure in exceptionally bright conditions.
• High Quality Optical Glass: The use of optical-grade glass helps maintain sharpness and resolution compared with lower-grade materials when shooting at long focal lengths.
• Nano Multicoated, 16 Coats: Sixteen coating layers (eight per side) reduce reflections and help preserve contrast, which aids in retaining natural tones with no color cast.
• Durable Metal Frame: The superfine matte black, double-threaded metal frame supports stacking additional filters or a lens hood and resists stray reflections.
• Waterproof and Easy Clean: Multicoating plus a waterproof finish makes the surface easier to wipe and keeps the filter working in varying outdoor conditions.
• Included Storage Case: A protective case is supplied to keep the filter safe from scratches and dust between shoots.

Who It's For

This filter is aimed at photographers and astrophotographers who need an extreme single-density ND for tasks like solar imaging, eclipse work, or creative ultra long exposures in bright daylight. It suits users who prioritize optical quality and consistent color over convenience features like variable ND.

It is not the best choice for casual landscape shooters who prefer variable neutral density or for those who need light, compact solutions for everyday use; the density and intended uses make it a specialist item rather than a general-purpose filter.

Pros & Cons

Pros

• Exceptional light blocking for solar work and very long exposures without needing stacked filters.
• Optical glass construction helps preserve sharpness compared with lower-grade materials.
• Extensive nano multicoating (16 coats) reduces reflections and minimizes color shift, per manufacturer notes and user impressions of no color cast.
• Solid double-threaded metal frame for stacking and using a hood without vignetting on compatible lenses.

Cons

• The extreme 16.5-stop density limits general versatility and requires careful exposure metering or external metering aids.
• Because this is a specialist filter, it may be overkill for everyday ND needs or photographers who prefer lighter, variable filters.

Specifications

Filter Diameter	77mm
Density	ND100000 (16.5 F stop)
Material	High quality optical glass
Coating	Nano multicoated, 16 coats (8 each side)
Frame	Superfine matte black double-threaded metal
Weather Resistance	Waterproof, easy clean surface
Accessories	Storage case included

Our Verdict

The ICE CO 77mm ND100000 is a focused tool for photographers who need maximum light reduction with minimal image compromise; its optical glass and heavy nano coatings make it a reliable choice for solar and extreme long exposure work. For those specific uses it represents good value because it avoids stacking compromises and preserves image quality, but casual users should consider lighter or variable ND options instead.

Frequently Asked Questions

Can I use this filter for solar eclipse photography?
Yes, the extreme 16.5-stop attenuation and optical glass construction make it suitable for solar imaging when paired with proper safety practices and confirmatory metering.

Will the filter introduce color cast?
According to manufacturer specs and user feedback this filter is designed with nano multicoating to minimize reflections and provide no noticeable color cast.

Can I stack other filters on it?
Yes, the double-threaded metal frame allows additional filters or a lens hood to be attached, depending on your lens setup.