Prevent hazy images caused by polarized light reflected from water, snow, glass, or water droplets in the atmosphere with the 55mm Okko Pro CPL Filter. The Pro CPL filter eliminates glare and helps you capture rich, clear shots in challenging bright conditions.

This fully adjustable filter allows you to control polarization for color saturation and greater contrast. An ultra-slim frame and glass thickness of 2mm prevents vignetting. 14 anti-reflective coatings and an optical density of 0.3 allows you to get it right in camera first.

14 Anti-Reflective Coatings    Aluminum Alloy Frame

Okko Pro CPL filters reduce haze, allowing you to achieve greater color and tonal saturation for clearer images with better contrast.

Constructed from high quality, light weight, matte black aluminum. It's designed to still work with your lens cap and allows for smooth adjustment for ease in the field.

Ultra-thin frame minimizes the vignetting effect when shooting wide open.

Related Questions and Answers

Q: 1. Does anyone have experience using the Mars 300 where the transmission is not line-of-sight but must deal with walls or doors?

A: There are a lot of variables that come into play when you are not doing line of sight. The only way to truly be certain is to do a test in the space where you want to use it under similar conditions. The material of the walls, the distance, and Radio Frequency environment will all affect how well this system is able to send a video signal from the transmitter to the receiver.

Q: 2. It says pro version support 1080 at 59.94p but the monitor shows 1080 at 60p. Is there a way to select the output frame rate to be exactly 59.94p? Otherwise there are no benefits in 300 pro version compare to 400s version.

A: Hi Sergey, the Mars series only supports round frames.

Q: 3. I have the original Mars 300. Can I pair the transmitter to the 300 Pro receiver?

A: No you can not.

Q: 4. Is there a recommended device that can downscale a 4k image to 1080 for this to work? I'm using it with the Blackmagic video assist which unfortunately doesn't downscale the hdmi out.

A: Regarding your question related to the Hollyland Mars 300 PRO HDMI Wireless Video Transmitter/Receiver Set (Enhanced), B&H # HOHLM300PE, if you are working with 4K signals, a 4K-compatible transmitter, such as the one that comes with the Hollyland Pyro H 4K HDMI Wireless Video Transmission System, B&H # HOPYROH, would be recommended.

Q: 5. Will this send audio as well?

A: Hi Jonathan, yes the Mars 300 Pro send audio as well.

Q: 6. Can i use the Kondor Blue L series dummy baterry to power this?

A: Yes, you can use the Kondor Blue L Dummy Battery with the Mars 300 Set.

Q: 7. What video bitrate does it use? It it higher than 8-10 mbs in 400s model?

A: Hi Sergey, actually it's the same. Mars 300 Pro/Mars 400S/Mars 400S Pro, the video bitrate is 8~12 Mbps, while the Mars 400S Pro can set to "HD Mode", which is 12 Mbps. For App monitoring,the video bitrate is 3~4 Mbps.

Q: 8. Is there a Canon Lp-E6N battery plate for these?

A: The Mars 300 Pro does not support Canon Lp-E6N battery. All Hollyland Mars series supports NPF batteries.

Q: 9. Will i get the same delay of the wireless signal on camera monitor if I connect it through the HDMI loop out on the transmitter?

A: Hi Danilo, there is no latency thru the HDMI loop out on the transmitter.

Q: 10. What is the difference between the "Enhanced" and the " Standard" version other than the antennas being added?

A: Hi Gabriel, the external antennas on the transmitter is the only difference between the "Enhanced" and "Standard" version of Mars 300 Pro. You can choose either version depending on your application environment. Normally the "Enhanced" Version has two main advantages due to the external antenna: ① Better Performance while there is interference ② You can mount the Transmitter either horizontally or vertically since the external antenna can be bent to get the best transmission signal. While the "Standard" Version is more compact with all antennas built-in.