Wireless Remote

I own a Pentax K-m and would like to know what wireless remote I should buy to operate this camera.

There are a number of options available through Chinese suppliers on eBay.

You can have wired or wireless.

I use the wireless Pentax Remote Control F and it is still running on the original battery after 15 years.

Hi,I have a K-m and use a remote from Ebay via Hong Kong. £3.99 post free and it arrived in side a week. Works fine remembering that the K-m IR receiver is at the front of the camera At this price you can afford to have more than one in case you lose it.

Am I missing something. Wireless is different from Infa Red. The wireless is not dependant on seeing the camera and can be triggered through walls etc. I use the hahmel fm receiver and it is brilliant but so are the infa reds so long as you are not photographing wildlife who are spooked by the red light. Setting the camera up and hiding nearby and using Fm really gives you the edge in catching thise shy creatures.
regards thoramay.

Thoramay - in this case wireless does mean without wires - ie there is no cable attaching it to the camera .

In my case [ K-x ] there is no possibility of attaching a remote by a cable - Pentax did not see the need to put a 'socket' there for it so I have to use the Pentax Remote Control F like Gartmore and the receiver for the remote is on the front of the camera.

Infra red is wireless similarly ultrasonic is wireless or a radio transmitter is wireless.

And to add to the confusion of what is meant by wireless Pentax flashes communicate with each other wirelessly by flashes of light.

Archie

Infra red is at the bottom end of the frequency band of light.

Radio - including MW, LW, FM, TV, Satellite &c is from Hz up to 3 GHz (3 x 10^9 Hz)

Microwave - 3 GHz to 3 THz (3 x 10^9 - 3 x 10^12 Hz)

Infra Red - 3 THz to 430 THz

Visible - 430 THz to 750 THz

Ultra violet - 750 THz to 300 P(eta)Hz (7.5 x 10^14 - 3 x 10^17 Hz)

X-rays - 300 PHz to 30 E(xa)Hz

Gamma Radiation 30 EHz and above

And where is Stefan when you need him???

I should perhaps have clarified my statement by saying that flashes communicate using white (as distinct from infra red) light.

Archie

But what is white light? And it probably contains IR and UV!

Going back to what the OP asked, I bought one of these IR clones from ebay on Flossie's recommendation, from http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=300446938388. It cost me about £2.60 or thereabouts, and arrived in less than ten days. My (and Flossie's) reasoning is that this is cheap enough to lose in a field on a dark night's astro-photoshoot, without really caring!

I've also just taken delivery of my genuine Pentax Remote Control F (paid £17.99 from my local independent camera shop), which is 'for best'. Sounds daft, but I'd promised I'd support the shop, and the Pentax brand, plus I'd already had the thing on back-order for a few weeks before I bought the ebay clone.

Both work fine.

However, if you have an old Palm PDA, you can download some free software that'll turn it into a Pentax remote, here:

http://sourceforge.net/projects/prcf/

Works fine with my K-x!

And lastly, if you have one of those 'One for All' TV remotes, and you're geeky enough (hem-hem) to have a JP1 interface to connect it to your PC and program it, then there is a device overlay you can download for free from here:

http://www.hifi-remote.com/forums/dload.php?action=file&file_id=7495

You will need some other (free) software to download it to your TV Remote, and of course the appropriate cable... but you'll already have those, if you're 'into' JP1 programming anyway.

There you go. Short of employing a small child with a stick, or a Heath-Robinson mechanism involving a see-saw, a balanced egg, and a helicopter rotor, that's probably about all the methods available for triggering your K-x remotely! One of them should sort you!

Working
Andrew is already doing a great job.

Just read the description and now know why you bought one!

White light does of course contain a mixture of wavelengths - perhaps I should have said visible light as distinct from invisible frequencies such as IR and radio.