The STM-1 is a low-cost, high-quality miniature wall and surface mount microphone preamplifier from RDL, designed for use in commercial sound and broadcast applications. The compact size makes it ideal where a larger or heavier preamp cannot be used.

The high-performance circuit provides a fixed 50dB gain to bring any microphone-level signal up to the line-level range of nearly any line input. The STM-1 supply input is single ended and operates from 24 to 33VDC. Operation from 12VDC is possible with a 6dB reduction in headroom. For intercom applications, the input will operate directly from a speaker.

High or Low Impedance Input Mic Preamp    Fixed 50 dB Gain for Consistency    Balanced or Unbalanced Output    +24V Phantom Power    RF-Filtered Inputs and Outputs    Compact, Convenient Form Factor

Wall-mount high or low impedance input microphone preamplifier

Fixed 50dB gain for consistency

Balanced or unbalanced output

Phantom power capability

RF-filtered inputs and outputs

STICK-ON convenience

Related Questions and Answers

Q: 1. i appreciate that hte bokeh is appreciated, but i am looking for crisp images thru an expanded distance(f/i running children against a far hedge? Any feedback on this would be appreciated!

A: On a Canon Em mount APS-C camera, 22mm has the wide perspective of 53°. As you may know, the wider the lens, more DOF or Depth of Field (the area in focus) is created. The more you stop down ((increased the lens aperture number from f/2 to say, f/16, you will make the lens a universal, everything in focus lens. You will have no trouble keeping your kids in focus on a bright sunny day. In twilight, you will have to refocus.

Q: 2. Is this lens good for street photography?

A: Certainly, it will give you a field of view similar to a 40mm lens, which would be ideal for street photography.

Q: 3. can this lens be used on a EOS DSLR?

A: No, unfortunately it cannot. I think the M in EF-M means that it is intended to be mounted on a mirrorless camera. That is a different mount than the EOS DSLR.

Q: 4. Hello. Can it be used used on a Rebel T4i?

A: Yes, this lens is compatible with the T4i, all EF and EF-S lenses are compatible.

Q: 5. Not all Canon lenses enable DPAF Movie Servo AF. Is this lens compatible with Movie Servo AF?

A: This being a STM lens, this is compatible with Movie Servo AF.

Q: 6. Does this come in black??

A: yes it does

Q: 7. Is there an adapter for this lens to go on a e mount camera like the Sony a6500?

A: Unfortunately, B&H does not carry adapters for the Canon EF-M mount lenses. Im not aware of any options on the market that would enable one to mourn an EF-M lens onto an E-mount camera.

Q: 8. Is it black like the M6II or gun metal like M6?

A: The lens is black, similar to the M6II.

Q: 9. bring lens hoods?

A: The Canon ES-52 Lens Hood is compatible but not included. http://bhpho.to/383yTi0

Q: 10. How does it work for video? Without IS, does it work well for video? 18-150 is a bit heavy/poorly balances on the gimbal.

A: If you used this lens on the Canon EOS M50 which has 5 axis stabilization, then this would alleviate the need for stabilization in the lens. If using it on an EOS M camera without stabilization for video, then using a hand held gimbal is the best way to add stability.