BirdForum is the net's largest birding community dedicated to wild birds and birding, and is absolutely FREE!

Register for an account to take part in lively discussions in the forum, post your pictures in the gallery and more.

Reply to thread

Message: <blockquote data-quote="Chosun Juan" data-source="post: 3513736" data-attributes="member: 92780">David,You're probably far from alone there - perhaps the minority is larger than you imagine .... :brains:The way the IS works - frequency and amplitude of movement - will of necessity have to marry in with the users own parameters of frequency and amplitude of shakes and tremors. This may work better for some than others, and/or at different times (fatigue levels, environmental lighting and eyesight characteristics, etc)I found the 15x50 IS very nice to look through (apart from the unnatural to my eyes 'Flatland' type view), and remarkably steady to hold. When I engaged the IS, I could see distinct artefacts in the view which I found totally distracting. I didn't compare the two modes via chart testing, but looking at woodland scenes etc, I thought the view without the IS on resolved more detail in practice for me. I must reiterate - I could hold this bin unusually steady. I had a distinct preference for the view with IS off on this bin.When the 12x36 was released with the new MkIII IS system, I found it a different kettle of fish. For starters I can't get along ergonomically with it very well - not enough real estate for my liking. My best grip is still shaking like a mad woman !  :eek!:  Whether or not this informs my opinion of the new IS system functioning, or whether the new IS system itself is responsible for the lion's share in noted improvement is difficult to distinguish. All I can report on is how the bin and I as a 'system' worked as a whole. With the IS off I could notice distinct shaking in the view when reading distant signage. With the IS on I could notice an improvement in the ability to read lettering. I could also notice some minor movement of the IS system but this was not objectionable and had no distinct artefacts for me. So all in all an IS system that works better for me.I would like to compare the two -- 15x (IS off) and 12x (IS on) to see which one resolves the best detail at equivalent distances. I'm only going by memory, but I have a feeling it may be the 15x ..... that's one that deserves more thorough analysis  :cat:Chosun  :gh:</blockquote>

Verification