[Glass] First thing I was told... Linear Polarizer Filters will not work with my Canon 7D (and other digital cameras). Supposedly autofocus malfunctions. WRONG! Attached to my EFS10-22mm, autofocus works no different than normal. I've used Linear Polarizers on my EFS18-200mm and 70-300mm lenses without issue. Combined with Depth-Of-Field tweaking, the Linear filter works great when photographing well defined clouds or objects agains't the sky. I say put this will not work with rumor in the Untrue folder next to claims regarding Nitrogen filled tires. I've tested both claims and found them inaccurate. To me, Linear Polarizer filters are an important part of my camera kit. I prefer them over Circular Polarizer filters.

[0.175 lb] Highly recommended.


I purchased a 4-stop ND filter (1.2). It never comes off my Sigma 105mm f/1.4.


Practically all my headshots and portraits (250 clients) since the purchase were taken with this filter. I can keep the shutter speed in a reasonable range with strobes (1/30 -- 1/200) without relying on high-speed sync. I can also keep the strobes at a reasonable range (1/4 -- 1/128), which wouldn't be possible without a 4-stop loss of light transmission.


Other ND filters have funky colors - maybe I was lucky but this one has not created any noticeable color shift. Thank you Formatt!!

[Glass] I've been refining my ultra slow photography techniques for about a year now and figured it was time to graduate to 'the beast' - Firecrest's Nd1600. The results are amazing with the clarity I was hoping for, minimal barreling and silky smooth threading onto my lens.

Ultra slow photography is the most technically challenging in my photo skill set (I use a Pluto Trigger to do the math for me) and having a reliable 16 stop filter to rely on helps keep me focused on the art rather than the techno details.

[0.175 lb] I didn't see any reviews here, so I'd chime in:

I purchased this with the Sigma 105mm f/1.4, and surprised that it has no noticeably color cast (compared to some ND filters for my 85mm lens).

I'm quite satisfied. The glass is very thin and light, like 30-50% of the weight of a UV filter for the same diameter.


I use this to get wider apertures in the studio setting, given that my strobes can remain fairly strong, and the ambient lighting can either be cut at higher shutter speeds (1/200) or introduced at lower speeds (1/30-1/60). A joy to use.

[0.175 lb] suppose you want to shoot wide open f/ 1.4 or f/1.2.. counting down from the "sunny 16 rules" from a bright sunny day, you would need a 2-3 stop worth of ND filter for the camera to be able to shoot at that open aperature, this can do it!! The mild color cast is easily adjusted post.

[0.175 lb] It is the best

[0.175 lb] Rotating polas require turning to achieve the optimal effect, I choose the linear pola, no turning, just drop in your matte box and shoot.

[0.175 lb] Great for long exposures, have the 6 stop and split Nd filters also from formatt Hitech, Highly recommend.

[Glass] Another ND filter in my tool kit. Different brands can produce somewhat different effects. Some people like it, other's don't. I prefer to look at it as another option when making my picture. It is nice to have options. Optical quality is awesome, and that is what matters.

[0.175 lb] Hi,


Purchased in late 2020 for Sigma 105mm 1.4 (Nikon).


This ND filter is really good because it does not create any color cast. The ND allows me to use the lens at f1.4 without overexposing the shadows (while using my strobes). It is a great ND filter, more neutral than a few others I purchased for a 85mm 1.8.


High recommendations.