The 100 x 100mm 81EF Light Balancing Filter from Lee Filters is compatible with a LEE Filters 100mm System filter holder. It is uniform in color, and with a mired shift value of +53 it can be applied to purposely create a warm cast over an entire image. This effect can be obtained under daylight when this filter is used on a film camera system with daylight film installed, or on a digital camera system with its daylight white balance setting selected. The Lee Filters 100 x 100mm 81EF Light Balancing Filter is also useful for balancing light sources with a color temperature of 3850K for type B tungsten film, which is designed to accurately reproduce colors under 3200K light sources.

This filter is made of optical-quality resin and measures 2.0mm thick. A padded pouch is also included with the filter.

When used, the Lee Filters 100 x 100mm 81EF Light Balancing Filter's 0.2 density darkens the entire image by 0.6 stops. This reduction in exposure can be compensated for by adjusting the aperture setting of the lens it is placed on, or the shutter speed of the camera being used.

The light balancing filters for type B tungsten film are designed to correct for the color temperatures over 3200K, and are considered to be progressively stronger in their effect when used to add warmth to a daylight image.

For 100mm System Filter Holder    1.5x Filter Factor, +0.6 Stop    3850K Color Temperature to 3200K    Corrects 3850K Light for Tungsten B Film    +53 Mired Shift Value    Can Add Warmth to Entire Image    Optical-Quality Resin    Padded Pouch

• Compatible with a LEE Filters 100mm System filter holder
• Can add a warming cast to an entire image under daylight when used on a film camera system with daylight film installed, or on a digital camera system with its daylight white balance setting selected
• Provides a mired shift value of +53
• Reduces 3850K color temperature to 3200K
• Allows type B tungsten film to accurately reproduce colors under 3850K light sources
• Constructed from optical-quality resin for clarity
• 0.2 density filter with 1.5x filter factor darkens the image by 0.6 stops
• Filter density can be compensated for by adjusting lens aperture or camera shutter speed
• Padded filter pouch included for storage and transport

Related Questions and Answers

Q: 1. Does anyone have a comparison on the Super Stopper compared to Lee's ProGlass 15 stop filter? Almost twice the price, is it worth it?

A: The LEE Filters 100 x 100mm ProGlass IRND 4.5 Filter (15-Stop) B&H # LEPGIRN15100 is more expensive because it combines two filters in one. Not only the ND but it also has an IR filter as well. Because digital sensor are susceptible to the infrared that get through the ND, this helps to keep your blacks from going to a very-hard-to-correct magenta color shift.

Q: 2. Isn't this the #21 orange standard?

A: A #21 orange filter is the standard type. A #22 filter is more like a deep orange.

Q: 3. 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: 4. Are these filter frames only for use with the Nikkor Z holder?

A: That is correct, the LEE Filters Standard Filter Frame (100x100mm) with Single Pouch BH #LE100FS • MFR #100FS is for the Lee NIKKOR Z 14-24 f2.8 S Holder, https://bhpho.to/2YRgjaT .

Q: 5. There is a little soft thing around the edges of the filter which area is smaller than 77mm not mention to 82mm. Would it be possible to use LEE Filters Fujifilm GF 23mm f/4 R LM WR Lens Adapter Ring for 100mm System Filter Holder and no vignette for GF 23mm lens?

A: Yes you can use it with LEE Filters LEE100 Filter Holder B&H # LE100FH and LEE Filters 82mm Wide-Angle Lens Adapter Ring for 100mm System Filter Holder B&H # LEARWA82

Q: 6. Will this work with the B&H 100mm filter holder (with the correct adapter)?

A: I can only assume it would. I have been using Lee's Lens hood with built in filter holder for years and highly recommend it.

Q: 7. Would these filters fit the Tokina 11-16mm f2.8 lens?

A: The specs for this lens, as listed at B&H, show a 77mm front thread. Get a Lee, or similar, 4x4 or 100x100mm filter holder and a 77mm wide angle adapter and it should physically fit. With this wide of a lens, I don't know how much vignetting you will get.

Q: 8. will this fit a Nikon nikkor 35km 1.8 and if so what accessories do I need to purchase with this filter?

A: yes with the Lee 100mm filter holder kit, go to 'Lee 100mm filter' on the internet and the site will show you everything you will need. I think B&H carries them.Regards...

Q: 9. 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: 10. Do you see a blue or magenta tint with this filter?

A: Yes. That is true. I get blue tint with it. But if you shoot in RAW this can easily be corrected in post processing later.