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04-03-2018, 02:57 PM   #1
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Cable Release Terminal

I am new owner of K-5 II from two months. I am still experimenting with the camera but up till now I am very satisfied of my new Pentax. I cannot find any answer in Operating Manual about the socket below memory card slot. It is described as Cable Release Terminal only in Manual - page 20. What is it for? For ear phones like for mobile devices?. I cannot found any details about the socket in manual. Could any User of K-5 could answer to the question? Here is a picture.

Thanks for any advice.

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04-03-2018, 03:25 PM   #2
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There is a Pentax accessory which has a plug on it just like a headphone but is really a trigger signal. On Bulb the trigger can hold the shutter open.

“Pentax Cable Switch 205“
~$50 at Adorama

Other brands will work to I assume but I have the above and it works on my K5 and K3
04-03-2018, 03:30 PM   #3
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QuoteOriginally posted by JKoch Quote
What is it for?
It is for plugging in a wired (or wireless) remote shutter release. It uses a 2.5mm TRS (tip/ring/sleeve) plug.
04-03-2018, 03:31 PM   #4
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It accepts remote wired shutter releases such as this one (Canon RS-60 E3 Remote Switch (2') for Sub-Mini (E3)), which I've been using on my various generations of Pentax DSLRs, including the K-5.

04-03-2018, 03:48 PM   #5
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I've been using a cheaper Viltrox cable release for nearly 12 months with few complaints. Plug sometimes dislodges slightly from socket so it might seem it is not working but once aware of it it's easy to just push it back in firmly.
04-03-2018, 03:54 PM   #6
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Thank you all. These answers are fully detailed for me. I just go to examine my new Pentax back - nearly incessantly last weeks :-).
04-03-2018, 03:57 PM   #7
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It uses the same connector as the low end Canon EOS cameras. You can get one on eBay for less than $2.00...

RS-60E3 Shutter Release Remote Control Cable f Canon EOS Digital Rebel PENTAX | eBay
04-03-2018, 04:40 PM   #8

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I had to file down the plastic base of the type of remote switch I got for it to fit deep enough and work consistently. A shortcut to the product is below.

Vello RS-C1II Wired Remote Switch for Select Cameras RS-C1II B&H

04-03-2018, 04:56 PM - 1 Like   #9
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That little fitting is extremely useful. To summarize the comments above:
  • It is intended for use with the Pentax CS-205 wired remote (Review)
  • It is also compatible with a number of third party wired remotes and intervalometers such as the Bower unit I own (Review)
  • Both full and half-press are supported as is AF (menu-->"C"-->18)
  • Compatible wireless triggers are also available for long distance remote. It is possible to sync multiple camera bodies using such triggers.
In regards to intervalometers...those are a special type of remote that is capable of doing long timed exposures (camera in B-mode) as well as exposures at intervals far beyond those supported by the camera itself. I have used mine to do timed exposures longer than 30s in interval and also combination with built-in interval mode to produce intervals at interval.


Last edited by stevebrot; 04-03-2018 at 05:15 PM.
04-04-2018, 10:07 AM   #10
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Thank you Steve for detailed summary. The Bower RCLC1R device is very interesting and surprisingly versatile one.

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