The built in filter coffee machineis a basic contrast filter, primarily for use with black and white film, that very strongly darkens skies and blues, increases contrast, and is often used for outdoor photography to emphasize contrast and shadows. There is an approximate 4x filter factor with this filter, requiring an increase of 2 stops for normal exposure.

The front and rear surfaces of the filter both feature a single anti-reflection coating. Each coating helps to increase light transmission by reducing reflections, scattered light, and ghosting. Additionally, they offer protection to the filter substrate while helping to keep the glass clean for longer than uncoated glass.

This Heliopan filter is constructed from Schott glass for increased optical clarity and color fidelity. It features a brass filter ring for durability as well as jamming prevention.

#15 Filter for Enhanced B&W Contrast    4x Filter Factor, +2 Stops    27mm Front Filter Threads    Front and Rear Coating    Schott Glass Construction    Brass Filter Ring

Dark yellow contrast filter for black and white film strongly darkens skies and blue tones, cuts through haze, and increases overall contrast.

Commonly used for landscape photography to emphasize blue skies and give clouds more visual depth. Also used for aerial and micro photography applications where added contrast can be used to enhance detail.

Single coatings on both the front and rear offer protection to the glass and help to improve light transmission and image quality.

Constructed from Schott glass for optical clarity.

Brass filter ring helps to prevent jamming and provides additional strength.

Dual threading with 27mm front filter threads permits combining with other filters.

Related Questions and Answers

Q: 1. What's the difference between this machine and the Z-350 Fazer from Antari? How can I choose between this machine, the Z-350 Fazer and the similarly priced MAGMA Prime 700w haze machine from Elation?

A: The Antari HZ-350 Haze Machine can output up to 2,400 Cubic Feet in 1 Minute. The Antari Z-350 Fazer up to 3000 feet in a minute and the Elation Professional MAGMA PRIME 700W up to 4000 feet per minute. That is the main differences between them.

Q: 2. Can the UniFi Dream Machine Pro be controlled by a separate Cloud Key? I have multiple locations operating, need to add 1 more.

A: The Ubiquiti Networks UniFi Dream Machine Pro can only be managed by it's built-in controller, not a separate Cloud Key.

Q: 3. Does this model have a built in speaker?

A: This does not have a built in speaker. You can plug it into external speakers.

Q: 4. how many db's does this model produce at 100% output?

A: According to the manufacturer, the decibel (dB) measurement of the unit is 70.8 dB measured at 1 meter.

Q: 5. How do you change channel on mic

A: The two wireless microphones that are included with the Karaoking G100 Karaoke Machine Battery-Powered Speaker do not have switchable channels. They are each fixed to a preset frequency.

Q: 6. Can this be used for speakers that come to luncheons of about 80 people sitting at about 10 tables? At some point, we might add music, but for now, we want it for speakers and lecturers.

A: The Karaoking G100 is a karaoke machine with an 8" speaker and two wireless handheld mics and a built-in disco light show. It is intended for singing but can also be used as a PA system for speaking at small events. You may want a more powerful PA system with a larger speaker like the Pyle Pro PPHP1299WU (B&H # PYPPHP1299WU) which has a 12" speaker and is rated at 1000W peak power or the Pyle Pro PPHP1599WU (B&H # PYPPHP1599WU) which has a 15" speaker and is rated at 1600W peak power. Both systems have Bluetooth, a built-in FM radio, and include two wireless handheld microphones. They can also be mounted on a speaker stand like the Pyle Pro Height-Adjustable Tripod Speaker Stand (B&H # PYPSTND1) for better projection.

Q: 7. Most karaoke players have a key control which changes the key signature up or down by 6 half-tones. Does this machine have this capability?

A: The Karaoking G100 Karaoke Machine Battery-Powered Speaker with Two Wireless Mics and Built-In Light Show does not specify the ability to adjust pitch or key signature.

Q: 8. Are there any fees associated with the device? Are all updates (including security definitions) free?

A: Outside of paying your ISP for internet service, no, there are no fees associated with the Ubiquiti Networks UniFi Dream Machine Pro BH #UBUDMPRO.

Q: 9. So the PowerStation doesn’t come with a power supply? Really Astera? How do I power this thing??

A: You will need one of these to power the unit. https://bhpho.to/3dRO8Ny

Q: 10. Does it come with diffusion? Or is this just the frame?

A: The Aladdin AMS-ADBALL50 Ball1 includes the frame and diffuser. It can be used with the Aladdin BI-FLEX 1, Micro LED BI-FLEX M7 and ALL-IN-1 panels. Replacement diffusers are also available if it ever gets misplaced.