bobn2

Just to be pedantic (because this can cause confusion later if not understood) a so-called 'constant aperture' zoom does not have a constant aperture throughout it's zoom range, if has a constant ...

Can you cite the applicable theorem?

Tsk, tsk. That sounds surprisingly like the green-eyed monster. In my experience, the thing about 'the obvious' is that if you think something is 'obvious' you probably haven't understood it. But ...

It's strange that. I have a lot of respect for your knowledge of optics, which is obviously way ahead of mine. Most of the disagreements seem to come when discussing industry practice, in which ...

Do you have any quantitative data to back that up? I'd be interested how your TSQ ('taken seriously quotient') compares to mine. Also, does my miserable TSQ somehow invalidate the source of the ...

On mFT you need to set the emotion control to double what you would on FF.

Impressive piece of work, Brian.

Yup, it's smaller and lighter than something that does a lot more. It's also larger and heavier than things,that do a lot less.

Were it only 'ISO' that CIC gets wrong. It also gets exposure, aperture and diffraction wrong, to name but 3. There are some pages that don't contain gross errors, but they are relatively few. ...

No, an afocal converter fits on front of the lens. The 'focal reducer' is a positive lens (with its own focus, if used by itself) which goes behind the main lens and increases its power. A ...

Having pixels doesn't really change things at all. The fact that some people have added another way of deciding a CoC doesn't really change things, they could just have easily used a CoC based on ...

Something of an exaggeration.

The results of the in-camera crop (DX mode) and the out of camera crop will be exactly the same. The differences are operational. i) The camera can run at a higher frame rate, 6 fps rather than 5. ...

Unlearning is much harder than learning. Once you've internalised a faulty conceptual framework, dismantling it and starting again from scratch is really, really difficult. That is a major source ...

You haven't told us which camera you are using, which is of relevance in a practical programme of learning. If you think that you have the eye for the shot, and want to take more control, there's ...

The microlens thing also affects the DoF blur. Some people might think it's better, because it's akin to fitting an apodised lens (maybe you could call it 'feather boke'), but it certainly reduces it.

That's where you're wrong. I strongly agree that it's good to get started with an easy to understand and good enough tutorial and refine later. All I said is that site is full of fundamental ...

Here's the thing. The most important thing in photography is the eye for the shot. Most cameras can operate themselves perfectly adequately automatically. Many photographers obsess about technical ...

That site is full of fundamental errors. That's a fact. Whether he can 'safely ignore' that fact or not depends on how much he wants to be mistaken in the future. The fact that you've gone for it ...

First stop is to read these two articles: https://lenspire.zeiss.com/photo/app/uploads/2018/04/Article-MTF-2008-EN.pdf https://lenspire.zeiss.com/photo/app/uploads/2018/04/CLN_MTF_Kurven_2_en.pdf F ...