I have just discovered that exposure time must be faster than 1 second when using the FT1. Is there a good reason for this? A bad reason, even? I thought it might be to save power holding the aperture in place, but it takes force to hold the aperture wide open. Relaxing pressure is how the aperture is stopped down for the shot.

What's annoying is I had a lens mounted using a reversing ring and there was no way to stop down the aperture. Neither was there any CPU to drive. If power is the excuse, the camera wasn't saving anything.

(Maybe this is in a manual somewhere. I wasn't thinking of slow exposures when I read the manual.)

I didn't know this, just tried and confirmed that the longest exposure with the FT1 attached is 1/1.3 sec.

With the Nikon 1 lenses, the maximum exposure time is 30 sec, and in bulb mode when using the ML-L3 remote the maximum exposure is 2 minutes (as documented in the manual). For doing night star trails, I do want longer than 2 minutes.

Now with your info, it appears that I am not going to even get 30 sec with my f/1.4 lenses using the FT1.


DJM

"Images of the Day" PhotoBlog
My Nikonians Gallery
ShepArtPhotography Gallery

Indeed.

Lowest I could get was 1" with FT-1 and 40/2.8 dx macro.

Willem

Sony Nex-7

In aperture priority mode the indicated exposure was 1 second. In manual 1/1.3. I think the internal rule is "exposure must be faster than 1 second." In aperture priority mode the computer continuously adjusts exposure and can select up to 0.9999 seconds or so, which rounds to 1. In manual mode it stops at the last discrete step before 1 second, which is 1/1.3.

>In aperture priority mode the indicated exposure was 1
>second. In manual 1/1.3. I think the internal rule is

Exactly: I was in A mode (which I like the best).

Willem

Sony Nex-7

Bummer. To say the least. Along with the limited AF options, this actually makes me wonder if Nikon is in fact cooking the books to carefully manage their internal competition between products.

If they get this wrong, they'll destroy one the major reasons I chose Nikon 1 rather than m43: it's a quasi extension of my F mount system. Having a minuscule extension might not offset the advantages of, say, Olympus m43.

Agreed. The only reason I have a Nikon 1 is the prospect of reusing some F mount lenses.