Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
02-05-2021, 07:50 AM - 1 Like   #1
Junior Member




Join Date: May 2018
Posts: 42
Pentax K-70 and Skywatcher StarAdventurer (and derivatives)

I have just purchased a SkyWatcher StarAdventurer 2i to enhance my astrophotography. I already have a remote timer and, of course, the K-70 has lots of timer options built in which I had intended to use.. However the StarAdventurer can control the camera plus the camera/StarAdventurer combination can then be controlled from an App over WiFi.

Whilst owners of Canon, Nikon and Sony etc. are generally well catered for by device manufacturers, Skywatcher appear to have forgotten us Pentax owners. Therefore there is no connect cable available for Pentax.

I did a bit of research, looking at the wiring diagrams for Canon cameras and Pentax cameras. I realised that the early Canon cameras had effectively the same signals on the tip, ring and sleeve of the remote plug. Ok so the Pentax is actually tip, ring, ring, sleeve but the Internet advice is that the sleeve and adjacent ring should be shorted together making them one for the correct operation of the Pentax shutter anyway.

Therefore the only difference is that the Canon is a 2.5mm plug and the Pentax is a 3.5mm plug. I purchased the Skywatcher Canon R1C Cable and a 2.5mm to 3.5mm stereo adaptor (Stereo because it naturally shorts together the sleeve and adjacent ring) and IT WORKS! I now have a Skywatcher StarAdventurer controlling a Pentax camera!

I should add that in the settings menu on the camera you need to manually set the input port to Remote Control as it does not auto-detect with this cable.


Posting this here for future reference for someone. I

Attached Images
View Picture EXIF
Pixel 2 XL  Photo 
View Picture EXIF
Pixel 2 XL  Photo 
02-05-2021, 08:19 AM   #2
Dan
Site Supporter
Site Supporter




Join Date: Dec 2007
Location: Pacific Northwest
Posts: 305
Brilliant! Thanks for posting.
02-05-2021, 02:22 PM   #3
Pentaxian
Michail_P's Avatar

Join Date: Nov 2019
Location: Kalymnos
Photos: Gallery
Posts: 1,174
Very thoughtful .
02-05-2021, 06:56 PM   #4
Otis Memorial Pentaxian
Loyal Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 39,553
QuoteOriginally posted by mlines Quote
Therefore the only difference is that the Canon is a 2.5mm plug and the Pentax is a 3.5mm plug.
I'm glad it is working for you and surprised that SkyWalker does not list your Pentax K-70 as supported. It is pretty well-known that Pentax and many models of Canon cameras share a common simple plug logic. FWIW, the required plug is actually 3.5mm TRRS (four conductors instead of the three pictured).* That is probably why the camera did not auto-dectect. That said, if it works, it works!

I am looking forward to seeing your astro posts!


Steve

* The question of compatible plugs for the K-70 and KP has been discussed at length here. If I have time, I will find the one that provides the easiest solution.

Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
cameras, canon, k-70, k70, pentax, pentax k-70, plug, skywatcher, sleeve, stereo
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Ioptron smart eq 3200 pro vs skyguider pro vs skywatcher star adventurer? AI8877 Troubleshooting and Beginner Help 18 05-03-2020 09:49 PM
Compare DA 70 with DFA* 70-200 @ 70 Paul the Sunman Pentax SLR Lens Discussion 20 10-06-2016 05:54 AM
Lens tests on K-1 : 15-30, 24-70, 70-200, 31, 43, 77, 100 Macro, 28-70 and 80-200 Mistral75 Pentax SLR Lens Discussion 14 06-28-2016 11:46 AM
For Sale - Sold: Pentax FA 100-300, FA 70-200, M 28mm; Sigma EX 28-70, Apo 70-300; Tamron Di LD 70-300 stillnk Sold Items 17 04-08-2012 11:39 AM
Wedding zoom? Da16-50/Da16-45/Da17-70/Fa28-70/Sigma17-70??? JayR Pentax SLR Lens Discussion 20 03-18-2010 10:30 AM



All times are GMT -7. The time now is 09:52 PM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top