james laubscher

A brilliantly made case for buying the Bigma! I'm going to start looking for the best price. Fun aside, I guess the only drawback is the size of the thing.

No one has mentioned the possibility of using the Sigma 120 - 400mm OS lens. I have this on my D5100. I have no complaints whatsoever - distortions, aberrations, sharpness, hand holdability are all...

A general thanks to all for the great tips - I hope others have found this thread as useful as I have.

Thanks for the heads up on the Neberians. I hadn't heard that they were out to get us Terrans.

Thanks Jeffsvisions, I'll give it a try. To others, regarding ambient lighting, the type of lighting on our domestic market is either 'warm white' (2800k) or 'cold white' (around 4000k). There is...

Thank you for replying. I like the term 'plausible colour'. That is what I judge with my eye when all else fails but I am well aware how colour perception shifts with dominant lighting. I work in...

Thanks foir your response, which I have read in detail. I have LR but have no idea how to create a colour profile. Could you give me a few tips please? Thanks.

Many thanks for your detailed reply. I have applied the online checking site you referred to and made small adjustments but it is obvious that my off the shelf computer shop screen has significant...

I've tried the following and got a reasonable result. Nikon d5100 or something with an equivalent low noise sensor; f3.5 18mm lens (kit lens); 12 seconds exposure; iso 3200 - noise reduction on in...

I read a strong case being made recently for using Nikon Capture NX2 for processing Nikon .nef files, the argument being that this would produce the best colour. Now I need help/guidance from all...

Firstly, I think this is a good question. The three metering methods are designed for different purposes so it pays to know what these are. Evaluative or matrix metering averages a largish number...

Hi JJ Winkel, I did these raw edit tests a while back. Adobe Raw was not the best for clear detail but does a good Chromatic Aberration correction. The latest DxO v8 does a good job on raw...

Thanks Lightpath! One of the questions asked above was why does the camera set a lower speed limit of 1/60s in flash (although as pointed out one can switch to slow speed flash and lower the...

Obviously I can't question your motives for changing brands but you have emphazied the weatherproof (not waterproof!) factor of the K30 and the loss of this weatherproofing when using other...

One has to draw a distinction between sharpness and resolution. Perception of sharpness depends on the contrast between edges in the image. Sharpness is easily increased with software and hence is...

There are theoretical differences and practical differences. Assuming that you have set your camera to your ideal set of adjustments i.e. contrast, saturation etc., the image you generate OOC from...

Very nice images but the owl chick looks over-sharpened - is this in camera or PP?

The exposure readings you see on the LCD are what the camera is metering before you take a flash shot.  If you could lower the speed or open the aperture wider, the scene would be significantly...

If you use manual tubes i.e. tubes that dont make a link between the lens and camera, you get issues: 1) focusing is tricky and the longer the extension length, the more sensitive the image is to...

By now every variation on the rectangular box shape for cameras must surely have been done. Just as the shape of an egg is the best for its purpose, so  the rectangualr box shape for small cameras...