have the Olympus OM-D E-M1 Mark II which is a Micro 4/3 camera. As a result, the lenses are tiny and have less glass to cover, making the price of these filters extremely low. So I bought both this K&F Concept 58mm Black Soft Filter 1/4 and the infamous Black Pro-Mist 1/4 Filter. It's all subjective, but I tend to prefer the look of the Tiffen Black Pro-Mist. The K&F is a bit too blooming and the image loses a lot of contrast. This makes the K&F less versatile. Meanwhile, the Tiffen is more balanced, with less bloom and higher contrast. It's perfectly acceptable for everyday use. Given the low price of this K&F filter, I'm still keeping it. But if I had to pick one, it would undoubtedly be the Tiffen Black Pro Mist Filter.

I received the new X-PRO filter set today and have already tested its applicability in the apartment. A judgment on the quality of the filter glasses and the combinability in a shot I still deliver ... The supplied box holds the holder + adapter rings + CPL + ND 8/64/1000. At the drawstring you can pull out the compartments and then very conveniently remove the filters. The plastic filter frames are decently sharp-edged, but not unpleasantly so, and allow you to remove and handle the filter without having to touch the glass. The tabs on the frame also make it very convenient to pull the filters back out of the holder, especially in any order. I have ordered two empty frames in 100 X 150 on the manufacturer's site, which should take my graduated filters after receipt, which I have from another manufacturer. I am curious how well this will work. If it works out, I'll have a complete system for myself, with CPL, three ND filters and two graduated filters (Soft 0.9 and Reverse Soft 0.9). Sliding the filters in and out of the holder requires some force, but is neither awkward nor imprecise. This will then also allow the graduated filter to be aligned well. The handling of the CPL filter with the insertion bracket is great, the turning mechanism is a bit rough, but precise. Screwing the adapter rings onto the lens goes very well, the threads are cleanly made, nothing rubs. Attaching the holder to the adapter ring is also a pleasure and the existing locking screw is very welcome, as the holder can be rotated relatively easily on the ring. The handling of the system has already convinced me, with "only" two slots I can live well for my needs and I look forward to the first use, in the next few days, in the great outdoors and with cold fingers. I have so far worked with round screw filters and waived graduated filters, which I now want to change. I also looked at the system from Rollei (Mark II), which can not keep up with the X-PRO from K+F in handling. Everything very flat and fiddly, offers little surface for holding and joining the parts. Getting the polarizing filter or adapter ring out of the holder again is no fun and almost impossible with cold fingers. K&F has solved this much better. Who wants to use graduated filters is very well served with the X-PRO set, who only needs gray filters, I would advise a magnetic round filter set, whose diameter is well above its largest lens, which is even faster to use, is more compact and should then not darken with several filters in parallel.

I am not sure if almost all of the reviews on this bag are paid for or what. But I can tell you this. If you own Semi Pro Gear or Pro Gear do not buy this bag. I have a Nikon D850 and Pro Lenses and they do not FIT in this bag. While the bag is "BIG" it is nothing but a BUNCH of VERY SMALL sections that your gear will not fit in. The Pockets that you put your Lenses in are super small and will not fit a Pro Lens. And the Buyer I bought this bag from does not offer Free Returns and Ground Shipping with Tracking at USPS would have cost me $75 to return. So now I am Stuck with a bag that I have ZERO use for. Trust me if you have Real Gear you do not want this bag regardless of the Reviews and what you see on YouTube. DO NOT BUY THIS BAG!!!!

Excellent workmanship of the packaging, the only downside is that when you use it in the X-Pro system it doesn't fit in the same case that it comes with. If you put the frame on it, you will lose the case.

The K&F Pro System from is an excellent product and much cheaper than other manufacturers yet giving equally quality results. Made from quality glass resin, I haven't noticed any colour caste in my images when using these filters. A nice touch is that each filter comes in it's own protective, soft pouch. Highly recommended.

Used on Techart Pro (so not on the Leica system), very useful for adapting the M42 lenses to my Sony (the Techart Pro adapter has a Sony to Leica M connection). A bit expensive for a piece of metal, but at least it's not plastic, it looks good and isn't difficult to attach.

Just received the pro filter system. Went out to do some fine art shot down by the coast results are fantastic. Love my new system.

this tripod system is an excellent purchase if you are on a low budget but want pro-grade shots from your equipment. it is sturdily built and has a few hidden features like sling undershooting and very low and wide-leg placement. it also has a removable leg for use as a mono pod. this tripod system is great for tabletop overhead filming and is ideal for streamers who want a different angle, I highly recommend this tripod system.