Dave Blackham
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Thanks Rich, and also thanks for sharing your tough and experience, however I must insist that you do keep your Zoom to the minimum or maximum setting, preferably to the maximum, but some zooms that are not IF then will be set to the minimum, the aperture always wide open and at last the Focusing must be set to Infinity, as this far more protects the internal focusing elements then the opposite, for more then one technical reason.
So the best thing to do in order to make sure to do things right set the focus to Infinite, the zoom to the maximum, in my case the RPZ 18-85 will always sleep and transport set at its maximum zoom range of 85mm while its focus always set to infinity, and the Aperture must always and absolutely all ways be set to Wide open, as to insure that the petal blades are tucked away.
Above statement are not from personal opinion but from knowledge gained thru out my many years in the industry, never a professional AC ncomparativelyor have I held a position in any set, but I have been in so many and have had the pleasure to learn so much from some of the best in the business, which patiently answered the many questions I always had about everything, plus I did studied a tone too
Any way, I can't remember how long it has been since I first learned this stuff, but I do remember particularly to have also read it on a very popular and respected book in the business, to which I was recommended by many years ago, just can't recall the name of the book, sorry, but I followed this rules ever since.
If there's a temperature issue caused by sunlight on black cases should lighter coloured cased be used for lenses and probably other equipment by preference. I mention this as many of us use Peli, Storm and other cases these days and most of them are black. Out of 250 or more in our hire stock over 200 are black. There is a 'silver' colour (which is in fact light grey) that might be better suited for lenses. The Aluminium custom flight cases are used far less for our own work as then need to be completely water tight as a good deal of our work is in marine environments. The only down side is some or our work is also at high altitude and a Peli can be slight heavier. We use cases manufactured by Zargess which are extremely light and very strong, water tight and comparatively inexpensive when an off the shelf aluminium case is required.