Skip to main content

Out of focus - Day 70

Yesterday I did some corporate portraits using my AF 20mm f/2.8 and a SB-900 on-camera. At home flipping through the files in LR4 I was not satisfied with the sharpness of the photos - especially those photos shot at a distance to the subject and wide open (f/2.8-f/3.5-f/4.0-f/4.5).

So my assignment for today was to investigate if this could be true or if I was not able to hand hold a camera at an exposure time of 1/80 sec (and/or manage the flash output correctly).

The set-up was two identical lanterns positioned on a table against a wall in a wind free area. My Nikon D300 was on a tripod and release was done using a Nikon MC-36 cable release (highly recommendable). Obviously the lens was my AF Nikkor 20mm f/2.8.

Here is the original frame.

From there I shot a frame for each f-stop - (f/2.8/3.5/4.0/4.5/5.0/5.6/6.3/7.1/8.0/9.0/10.0/11.0/13.0/14.0/16.0/18.0/20.0/22.0). Instead of showing all those photos I have chosen a photo representing both f/2.8 and f/22.


It is evident that the f/2.8 is sharper than the f/22. The loss of sharpness occurred already at f/16. So the verdict over my blurred photos yesterday is clear. It was 100% the photographer's fault  - not the equipment ;-).

The final photo - at the top of this article - gas undergone carefull but extensive post processing in LR4.

Popular posts from this blog


I've just ordered a new book from Amazon. The name "x-teams" immediately caught my eye as I read about it in the Danish business newspaper - Børsen. The reviewer assigned 5 marks out of six, so expectations are high.
X-Teams written by Deborah Ancona and Henrik Bresman raises an interesting question already on the front cover.
"Why do teams fail?"
The topic of the book is how to build teams that lead, innovate, and succeed. I'll write a short review as soon as I've read it.

Seach inside the book here

Three beautiful girls

Family portrait for mother-father and grand parents. Shot at my home studio in Hørsholm. Give me a call or an email if you need a portrait done - either for personal use or as a gift.

SnapScan 9000 - be prepared for a laugh

Can you guess who the nice young man is in the image? It is me as a high school student - important years - where my passion for photography really took off. My god - 35 years has passed since those happy years.

I have just scanned b/w negatives and color slides from these years, and it has been hilarious to see the pictures again. Since many of the images are not something to boast about, the mission was only to get the old negatives and slides converted to digital format. Since I have many pictures from my analog years this conversion process must also go quickly.

Therefore I have just tested JOBO Snapscan 9000. It took med just 5 minutes to unpack it and set up. The scanning process is extremely simple. You install an SD card in the scanner, and then feed negatives or slides into the scanner by the help of various rails and frames - one at a time. The scan process only takes 4 seconds per negative / slide. The scanner has some simple correction options such as built-in color corre…