FWIW I suggest using Lithium batteries, if cost is a concern rechargeable Lithium batteries. In addition, 10x42 L IS has press and forget feature where you dont have to keep the IS button engaged. It automatically turns-off if the binos were left vertically for 5 mins.
I have owned Cannon IS binoculars for over 5 years, I initially had an 12x36 IS, later sold it and purchased the 10x42 IS WP. I have used them extensively for wildlife watching, road-trips and star gazing. Here is my take on these binocualrs:
1. For those who don't know. Cannon IS binoculars...
on the first glace, this is a heavy rifle, I wish they made 6.5CM in lite. Also the bolt is not stainless steel and falls short of the famous TIkka smoothness found in the T3 series.
Santa was kind this year to deliver a Tikka T3X CTR in 6.5CM + Zeiss Conquest HD5 3-15x 50MM Scope. I am trying to pair this kit with an appropriate scope rings and appreciate any recommendations.