I have a lens that allows me an f/64. I use whatever f/stop gives me the depth-of-field when those settings accomplish the results I'm after. However, I do avoid my maximum openings on both sides of the scale -- closed or open all of the way. I have used lens test-charts to verify my sharpness-es at all f/stops. None of my lenses show dramatic deterioration in quality at any settings until my prints reach 16X20 and larger. I have Seattle Seahawks shots that are even larger and crisp at f/4. I was shooting film back then.

Thanks, Don. Your warning of 6's virus likelihood is appreciated. I currently use CS5.1 and earlier found CC loaded in a miniature configuration into my new computer (Dell) that I could not get to a size where I could use it, read it even. I no longer find Adobe's Help of much assistance, so I'm really reluctant to go through a second siege with their subscription edition. Again, thank you.

Looking to by a hard copy of PS-6. Any suggestions?

I'm 86, and also shaky. I use a faster shutter speed and/or a tripod. The quality of my work is on the same level as during my years as a professional. I'm familiar with my equipment and thus have no need to update to mirrorless. I've never chased after the latest equipment. I was once a dyed-in-the-wool Nikon user. When digital beckoned, I switched to Canon (I was no longer making my living with my cameras.)

The best camera for me is the one I bought. It had the features I value most. I changed from a lifetime of Nikon film cameras to my digital. I've had my gear for several years and have never had second thoughts about it meeting my expectations.

In bygone days cameras came with an X setting for strobes (current flash units) and M for flashbulbs. By the way, cords can malfunction due to damage. If your current units have tilt functions, I'd suggest you set your tilt at 45-degrees and try some bounce flash. I use it and like the results. Experiment to find what you like. Even colored ceilings can be correct using software.

Me, too. I shoot Canon now, but had and still love my old Nikons. I still have my gear from back-in-the-day.

I have purchased dozens of Circular polarizing screens over the years, as different lenses often take different sized screens. I've found no difference in the performance of one brand over another, although I shy away from those offered at dirt-cheap prices.

Our images speak for themselves.

I'd love to see one of your favorite photos taken by Mr. Jackson.

Your response to it gives me a deep satisfaction. Thank you.

I took my first pic in the fall of 1949, a black and white shot using a Chicago-made Sparta 620 camera with "I" for Instant (1/100) and "T" for Time (shutter open as long as release button held). On top of this little $9.95 jewel, it had a built-in opening for a Press #40 flashbulb. Quite often, as I was inserting the bulb, it ignited with my fingers on it. Exciting times. I taught myself photography using photo magazines. There were several of them back then. I turned professional in 1976 and I am retired now. Black and white is a favorite still.

I have my gear repaired at Northwest Camera Repair in Everett, WA. info@northwestcamerarepair.com is their email. The owner's name is Scott Crisman. He could be of help, providing he's willing.

I suggest you send them in 72jpg, which looks fine on screen but comes apart if they attempt an enlargement without paying you.

I shoot in b&w when I decide to use a built-in filter; otherwise, I shoot in color and convert to b&w with b&w software. Both work well.