The_cheshirecat

You had it repaired last July and it worked fine for 3 months. Did you send it back to Canon when the problem occurred a second time? Why are you raising the issue again now, more than 6 months...

Some can taste the difference between a $20 bottle of wine and a $40 bottle of wine. Some can't taste the difference between a $20 bottle of wine and $800 bottle of wine. Some can be taught the...

I prefer to shoot free hand, to the extent I would sometimes just brace against a tree for long exposure shots. That all changed when I got my 600mm. I needed a tripod so I went back into the...

YOU are not drinking enough :D -- I started in the 50's - my first picture was taken with a Leica and hooked me for life. I no longer use my Leicas, but I am still taking pictures. Some...

Not that rare, but not common either. All the suggestions made so far are valid and often solve the problem. When those fail you can try chilling the lens for a while, then warming the threaded...

You missed some key points I was trying to make – They /suspected/ and /assumed/ many things, never making a clear declaration in support of the claims which were made. So, I don’t need any...

I decided to post in this forum because it would appear my concern is most closely related to this forum, as opposed to any of the other forums. I have seen endless lists of individuals on these...

_micro_ lens? How did you make the 100-400 so small? I think you meant to say _MACRO_ lens -- I started in the 50's - my first picture...

It the procedure described in detail by BAK is difficult to follow, there are polarizing filters sold which rotate in thier own frames, but those tend to be more complicated, are a pain to operate,...

Where's the coconut? -- I started in the 50's - my first picture was taken with a Leica and hooked me for life. I no longer use my Leicas, but I am still taking pictures....

How about taking the lens to home depot and let them match it. A pint of paint only costs a few bucks. Then you can get a few 1 oz bottles, fill them and sell them for a tidy profit. :D All...

Thanks, but this is just a post based on DXO's results. If I had the specialized equipment needed to do the research myself, I might try. Surely there are others who do, but have not arrived at the...

I looked at that article (for the first time) and did find it plausible. I also found it curious words like “suspect”, It seems”, “it seems to” and “inclined to question” ending with “A possible...

Flying Fish and elfroggio have it correct. Any loss of light would be a direct result of the light passing through the glass of two different lenses - the transmission would be constant for a...

A single test proves nothing. It needs to be reproducible to have value. I thought about providing that coirmation using my 7D. But I realized a Nikon would be a far better candidate - Nobody would...

It's easy to know everything about photography, even memorizing things like DOF charts and other stuff* (Stuff: technical term for minutia) The hard part is applying it when and how it will...

Maybe it is because some of us are also our own harshest critic -- I started in the 50's - my first picture was taken with a Leica and hooked me for life. I no longer use my Leicas, but I am...

I have no doubt the average person is first and foremost concerned with content. Even here on the forums pictures are evaluated and commented on based on their content. Only after making the...

I know, and I usually just try to avoid feeding the vermin. But I have to admit it was to hard to pass up when I saw that recent post. Hoisted on his own petard (see below for...

Sitting in the car on a hot day you say? Thanks for words of caution. I am (perhaps too) cautious about putting something like this in an oven, and using a bar clamp might make it out of round...