Microsoft ICE stitching minimum overlap?

What's the recommended overlap ratio with this program? 50% or more? Or would I be able to get away with say 25%? Just trying to get an idea as I'll be shooting some stars tonight up north & don't want to waste 4+ hour drive because I didn't get the overlapping correctly.

Not seen the exact answer on the MS site but for sure a lot less than 50% base on my personal experience with ICE or in fact any other stitching software.
Rule of thumb: A 20-30% overlapping works fine all the time.
ICE is one of the best ones out there specially considering the speed and seamless final result. Only lets keep the voice down or uncle Gates or his successors will bring a nice price tag for us soon
The only problem with ICE specially earlier versions was difficulty for initial install.
Usually Stitching programs have extreme difficulties with extremely wide lenses and Hugin usually fail to recognize any fisheye image for stitching. I haven't tried fisheye images with ICE and will do that soon.

This is the result of more than a dozen images obtained from distance, during storm of Dec 16-17, in California mountains, over the net, through my security camera that I turned into a card and must say if you look at the final large size image, you hardly can guess this is made by a 640x480 low rez ip camera. individual images are matrix of X and Y axis with various extreme turns due to angle of camera. Basically anything you throw into ICE, it will give you a very good result.
Thanks Microsoft and I am a happy user of ICE.

30% always worked best for me while doing a Milky Way pano and stitching with MS ICE.

Thank you all; I need to practice this a bit more

Aki78 wrote in post #17341261
What's the recommended overlap ratio with this program? 50% or more? Or would I be able to get away with say 25%? Just trying to get an idea as I'll be shooting some stars tonight up north & don't want to waste 4+ hour drive because I didn't get the overlapping correctly.

I use ICE a lot when I want to create panorama's. If stitching doesn't work with all the pictures I first use the pictures that will stitch easily, say 5 or 6. I save them as partial panorama's. Then stitch these partial panorama's for the final picture.
When I use my 10-22 (almost fisheye) I use 50% of more overlap and crop somewhat before I stitch to loose the extreme distortion.

To make things more challenging I create a panorama from HDR images with 3 or more rows.

I always overlap by 1/3. Read up on parallax error as well. You can loose a lot of time to a curved panorama as well.