The 150 x 170mm SW150 Soft Edge Graduated 81A Filter from LEE Filters is compatible with a LEE Filters SW150-series filter holder. This filter can be applied to create a warm cast over specific areas of an image, such as a hazy or colorless sky, while allowing for a normal, unaffected exposure in the other regions of the 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. This filter's partial coloration corresponds to an ability to partially reduce 3400K color temperatures to 3200K, which reflects a mired shift value of up to +18 that can be applied to other starting color temperatures as well. This feature is most pronounced at the edge and tapers to clear by the middle, with a soft-edged line of transition between the colored and clear areas.

This filter is non-coated and is constructed from optical-quality resin for clarity as well as color fidelity. Where its coloration is most pronounced, the LEE Filters 150 x 170mm SW150 Soft Edge Graduated 81A Filter has a 0.1 density with a 1.25x filter factor that darkens the corresponding area of an image by 0.3 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 greater the color temperatures they can potentially reduce to 3200K, light balancing filters are considered to be progressively stronger in their effect when used to add warmth to a daylight image.

For SW150-Series Filter Holder    Selectively Adds Warmth to Image    Partial 1.25x Filter Factor, 0.3 Stop    Up to +18 Mired Shift Value    Partial 3400K to 3200K Reduction    Optical-Quality Resin    Padded Pouch

• Can add a warm cast over specific areas of an image when used on a film camera system with daylight film installed, or on a digital camera system with its daylight white balance setting selected
• Constructed from optical-quality resin for clarity
• 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. Can I remove the inside 'concertina' filter holder and use this bag as an empty pouch? (I want to use this bag as an empty pouch for a camera body, not filters.)

A: I agree with Omar M., below - not made to be removed (you could cut the bellows out) but you will likely be better off with a pouch designed for a camera body

Q: 2. Little stop for Nikon 14 24

A: This Filter was designed to be used with the Lee SW Mark II Filter Holder. That Holder is only Compatibilityfor use with the following ultra-wide-angle lenses:Nikon AF-S Nikkor 14-24mm f/2.8G EDSamyang 14mm f/2.8 ED AS IF UMCSigma 12-24mm f/4.5-5.6 II DG HSMTokina AT-X 16-28mm f/2.8 PRO FX

Q: 3. Is the padding inside the same as what is in the case that comes with the big stopper?

A: Yes it is.

Q: 4. 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: 5. Does the pouch work well with the glass filters like the big stopper & polarizers?

A: Yes, it works with 150x150 filter perfectly.

Q: 6. Does this filter come in a metal case similar to the 150mm Lee filters?

A: The NiSi Explorer Collection 150x170mm Nano IR Medium Graduated 3-Stop ND Filter only comes with a soft case.

Q: 7. Will this adapter work with the Sony G-series 28-135mm cinezoom lens that has 95mm diameter? Any specific reason why not? And can anyone comment on vignetting? Lastly, what other components are needed for the setup (other than the filters)? Thanks.

A: Yes, the lens adapter will work on the Sony FE PZ 28-135mm f/4 G OSS Lens B&H # SO281354 MFR # SELP28135G. The adapter is for lenses that have a 95mm filter thread.

Q: 8. Will this filter fit into the 4 x4, 4 x6 Lee filter hollder?

A: This is designed for the Lee Filter 150 System and the Mark II version which has a Lightguard in the II system that did not exist in the I version. I have the Mark II Holder sand have no problems with this filter used in it. Mixing and matching mfrs is not always a good idea.

Q: 9. 150x150 Lee Big Stopper can it be used for Solar Eclipse?

A: No, you must use a solar filter.

Q: 10. Is this compatible with the SW150 original (Mark 1) system?

A: Yes, this is compatible