Pearstone 3.5mm Stereo Male to Female Extension Cable (Black, 1.5')

Probably because of the significant amount of signal loss you'd get from a 50' cable of this quality and size.

Yes. We use these with our Polsen mics and our Canon R-500.Just make sure the R52 has a mic input on it.

Provided the connection on the intervalometer is 3.5mm, the Pearstone Stereo Mini Male to Stereo Mini Female Extension Cable will allow users to extend the line.

Yes, That’s exactly what I bought it for.

Yes!

No, phantom power (48V) is typically transferred through an XLR input on a camera, mixer or recorder, often for shotgun style condenser mics, and large and small diaphragm condenser mics. Perhaps you may be thinking of plug-in power, which is a very low voltage (such as 3 to 5V) supplied through the 3.5mm mic input on devices like cameras or recorders for lavalier style condenser mics. The Pearstone cable can transfer plug-in power, but not phantom power.

Yes... works fine with my Apple earphones.

This is a 3.5mm extension cable, if you have a microphone and recorder with a 3.5mm connection you can use this to extend the cable from the mic to the recorder.