This 100 x 100mm LEE Filters ProGlass IRND 100x100mm 3-Stopfrom LEE Filters ProGlass IRND 100x100mm 3-Stopis an ND filter with an 8x filter factor that provides a 3-stop exposure reduction. Its 0.9 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than normally required. By slowing your exposure time or increasing your aperture, you can control depth of field and convey movement more easily. Neutral density filters are intended to not affect the coloration of the image and are ideal for pairing with other filters.

The design of this filter has been optimized for use with digital sensors and to promote nearly flat attenuation of visible and infrared light. Due to imaging sensors' greater susceptibility to infrared light, compared to traditional film, color casts can occur when photographing darker subjects that require increased exposure times.

This 100 x 100mm ProGlass IRND 0.9 Filter constructed from scratch-resistant, optical glass for increased clarity as well as color fidelity.

0.9 Optical Density    Scratch Resistant, Optical Glass    For Lee Filters 100mm System Holder    Darkens Entire Image    Allows Reduced Shutter Speed    Allows Wider Aperture    Neutral Results, Visible, & IR Spectrums    Padded Pouch

• Compatible with a LEE Filters 100mm System filter holder.
• 100 x 100mm neutral density filter darkens the image, allowing you to photograph with a longer shutter speed or wider aperture than normally required.
• Providing a 3-stop exposure reduction, this filter allows you to control depth of field and convey movement more easily.
• Filter does not affect coloration of the image and is appropriate for use with other filters.
• Attenuates infrared light as well as visible wavelengths, to maintain color neutrality and suppress color casts due to increased exposure times.
• Constructed from optical glass for clarity.
• Padded pouch included for storage and transport.

Related Questions and Answers

Q: 1. How many mm thick are these filters?

A: The LEE Filters 150 x 150mm 0.9 Neutral Density Filter is 2mm thick.

Q: 2. I am an amateur photographer but I want to improve. what size ND filter do i need for my Nikon D3300?

A: Use the Lee Filter system. Use the 100mm width size and get the appropriate adaptor for you're lens. Then the little stopper and big stopper are awesome filters.

Q: 3. i want to purchase this filter please let me know that it is compatible with sony lences if not than which filter system i need to purchase i have 7rm2

A: Amit, to use the filter you have asked about you need to also have the filter holder, and the lens adaptor that are shown. The lens adaptor allows the filter holder to attach to the lens. The lens adaptor you choose must be based on the diameter of lens that you are going to use it on. So if you are going to use it on a 77mm diameter lens then you need to buy the 77mm adaptor similar to the one shown. If you have the correct lens adaptor and the SW150 Mark II adaptor as shown then the filter will be compatible with your lens. Typically the 150mm filter is for use on large diameter wide angle lenses. If yours is not this type of lens then you may want to use the 100mm or 75mm filters and required lens holder and adaptor. Alternatively you can purchase round ND filters that screw directly onto your lens without the need for a filter holder and adaptor, but make sure you order the correct diameter filter. Hope this helps.

Q: 4. Will this filter fit the Hitech Firecrest 100mm holder?

A: HelloSince the Hitech Firecrest 100mm holder is desined to recieve 100 mm wide filters it will hold this filter too.

Q: 5. Will this filter fit inside a standard mattebox 4x4 tray? We use the Genus Matte Box Lite and use Tiffin 4x4 filters without a problem, however the Tiffin 1,8 ND is twice the price of the Lee filter.The Lee filter has foam around the sides and is thinner than the Tiffin which is 4mm thick... so not sure it was meant for use in a matte box like the Genus. Thx for your help.

A: It will fit but be a somewhat tight fit because of the foam on the filter.

Q: 6. Hi, there is a little soft thing around the edges of the filter to seal the light. But there is still big gap I can see, so how it suppose to seal the light then? appreciated any comment. Thanks.

A: There are two slots that the filter can go in. Be sure to put the Lee Stopper in the slot that is the closer to the camera with the soft part towards the camera as well. Those two things should keep light from filtering in. Also, make sure that you cover the eyepiece either with tape or the cover provided by the camera mfg.

Q: 7. 1) Can the padding be removed? 2) If so, what is interior thickness of the case without the padding? 3) Will an adapter ring fit inside the case without removing the padding? 4) Is the padding on the top and bottom? 5) Is the case hinged?

A: the padding is adhesive glued in the case , interior thickness is about 18 mm. you can put in a adapter ring up to 77 mm , yes the padding is on top and bottom ,and it is not hinged .

Q: 8. How is this different from the big stopper?

A: The big stopper is 10 stops and this filter is 15 stops.

Q: 9. Will this fit a Coken P holder (stated as 84mm)?

A: Unfortunately, we cannot guarantee that the LEE Filters 85 x 85mm Little Stopper 1.8 Neutral Density Filter for LEE85 Filter System would fit inside the Cokin P Filter Holder. Cokin P square filters are 84 x 84mm in size, and their rectangular filters are 84 x 100mm in size. I cannot guarantee the extra 1mm width of the LEE Filters 85 x 85mm Little Stopper 1.8 Neutral Density Filter would work in the Cokin P Filter Holder.

Q: 10. Does this filter have a gasket on it's backside to help prevent light leakage?

A: Yes, it does.