Exposures > 30s with a Nikon D5100?

[JamesB]

Hello,

Backyard Nikon has helped a great deal with my Astrophotography. I generally use a Nikon D810A without problems but I would also like to use my Nikon D5100. With the D5100 connected I am unable to use the "Bulb" mode to set exposures greater than 30s. BYN tells me I need a D-Sub serial cable, but I have been unable to find such a cable that would connect the D5100 to  (presumably) the 15 pin socket on my Laptop. Does such a cable exist and would it work with BYN)

I know I can use an intervalometer but could I set this up and send the resulting images to BYN as they are taken?

 

Thanks & Regards,

Jim

[astroman133]

Jim,

Scroll to the bottom of this page and click on Supported Cameras under the BackyardNikon column. Then click on the Shoestring Astronomy DSUSB link near the top of the page, just before the table of cameras. Their cable has been tested and proven to work with Backyard Nikon. However, this cable only controls the shutter for BULB exposures. You also still need the regular USB cable for all other functions.