D Cox

If you save DNG files from a Quattro camera, you don't have to use SPP, so you don't get the SPP sharpening and noise reduction. Both of these can be set to taste in Adobe Camera Raw. Camera ...

I don't have an L (can't afford it), but I have noticed that the samples on DPR look soft. The sharp ones I've seen were shot with a heavy tripod. Perhaps the absence of stabilisation accounts for ...

You have to save DNG files and convert them with Adobe Camera Raw. Photograph a Color Checker in daylight. Some say you should also photograph it in Tungsten light, but I haven't done this. Downloa ...

There will always be arguments over AA filters. Sigma say the one in the fp L is mild. Don Cox

It certainly does. Don

I haven't tried this, but I suggest that you put the photos on two layers and use a mask for the upper layer which is vertical black and white stripes. Don Cox

I still have an Olympus OM1 and a Nikon F3, so I can compare directly. By far the best view is the Sigma fp camera's rear screen with the loupe attachment. However, it does make the camera rather ...

I can't speak to the L, but for the ordinary fp I made a profile with the Color Checker software which I use in Adobe Camera Raw, and I'm happy with the colours. I don't know if Capture 1 can use ...

Olympus have put a great deal of work into firmware to give better results in macro. Don Cox

Same size as the halide crystals in a typical film. https://www.sciencedirect.com/topics/chemical-engineering/silver-halides Don Cox

I use a Sigma 105mm macro lens for butterflies. 28mm is much too short. For smaller creatures than butterflies, a flash is helpful, as you need to stop the lens well down to get enough depth of field.

Single shot is fine for negatives. Slides have much higher contrast, so you could use SFD on a Quattro camera. But I would prefer to use a sensor with higher dynamic range such as the one in the ...

The other difficult subject is a small bird hopping around in the bushes and often covered by leaves and twigs. Bird eye recognition can probably help here. I think the more advanced focus systems ...

I would say shoot raw and use Exposure Compensation. This is the kind of problem that EC is there to deal with. Then lighten the shadows in processing. Don Cox

Sans-serif type face, too. People with good vision need to be reminded that many viewers of blogs have poor vision and/or poor monitors. Don

I find that 50mm on APS-C (75mm FF equivalent) is good for general walkabout, but depending on the location anything from 20mm to 200mm can be "natural". Don Cox

Which models of camera are they using ? Older Sony mirrorless cameras such as the A7 don't have the latest focussing technology. Also, you do have to set it up right. Don Cox

Abstract pictures can have traces of real life, more or less visible. Non-figurative pictures are just shapes and colours with no reference to any real objects other than mathematical concepts ...

Excellent photo, Scott. Don

I like these. The shallow DoF works really well. Nice subtle colours too. If they were mine I would be inclined to put them through the "Neat Image" program to reduce the noise. Don