Photoclubalpha

MSM, You should also read up on hyperfocal distance if you haven't already. Just google it. Yes, I do know about it, it still makes interesting reading though. I did a similar lens test on a 50mm and a 18-70mm zoom and they are much improved over the results of the sigma 10-20mm. It's unfortunate b...

The Sigma 10-20mm (or 10-24mm) at 10mm will not have very sharp corner/edge detail. Lightroom uses a Lens Profile for this lens, if you have loaded that up it corrects vignetting. That increases the exposure gain to the corners, and will make the image noisier towards the periphery. Try this experi...

Try looking for mush on the bird feeder, because my guess is that you are focused on that. Focusing with all DSLRs is not particularly accurate, especially with shorter lenses - around 18mm etc. Even stopping down does not really bring everything in when you are viewing such high resolution files a...

You have two choices really - Adobe Lightroom 3.2/3.3, for which there is a Release Candidate Beta version you can download free of charge and use until December 31st; followed by purchase, can be had for around £100 I think; offers superb control, correction of lens geometry, aberrations, the lot....

Your image is oversharpened and saved as a in-camera JPEG. That process destroys all fine detail and adds an unwanted dark-light edge to coarse contrast changes. My raw conversion settings here in ACR 6.3 are sharpness 25, radius 0.5, detail 25, masking 0; luminance NR zero; chroma NR zero (no nois...

I'll try to help you with sharpness. I felt that was OK, they felt it was not. I have had much softer images accepted. The key is that the picture must look natural and not as if any processing has been used to enhance sharpness. Here is a typical f/11 ISO 100 shot on the A350 which shows good shar...

All of our A350 images have been accepted except one batch where our daughter was visiting Belfast, and tried to get decent views of Stormont in very poor light. I felt the sharpness was OK, given they were enlarged at that time to 48MB, but they said it was a borderline case. This is the rejected ...

hi, i'm a newbie here (hello! :D ) so don't know if i'm posting this in the right place, but i've had an a350 for sometime now and after initally passing the test images for alamy and then loading up a handful of images (with difficulty!) i've had the last 27 images i've tried to upload rejected by ...