Free AF front/back focusing adjustment charts.

Email: brqyvn@gmail.com

 Hi Photographer friends,

I just learned how to embed a PDF file on Blogger. This makes it easy to share the AF front/back focusing charts. You can now download the charts right here  by clicking the the link below or the image.

The charts are free and are my gift to all Pentax users as well as other brand of DSLRs.

https://drive.google.com/file/d/0B_44neE8iNsXUzRQSEpjRnpoYUU/view?usp=sharing

Best Regards,

Yvon Bourque

Auto-Focus * Front and back focusing charts updated. The good news is that it's still free.

Email: brqyvn@gmail.com

 Hi Photographer friends,

Do you have front or back focusing problems with some of your lenses or DSLR? You could spent in excess of One hundred dollars to get a manufactured lens aligning devices, or get mine for free. It does the same job and it cost nothing.

Why would I give it away? I love photography and I made some great cyber friends through my blogsite.  It's my way to contribute a little, and help up and coming photographers. It can help Advanced and Pro Photographers as well. 

For almost six years, my AF charts have been downloaded all over the world. The charts are downloaded on an average of five hundred times everyday. It was originally designed for the Pentax K20D, but I updated the charts by deleting any camera specific instructions, and by revising images and some of the instructions. I believe it is more user friendly than before. You be the judge. The charts (3) are now all inclusive in one downloadable package and are for every brands of DSLR cameras such as Pentax, Nikon, Canon, Sony, Olympus, and all other brands that have the capability of adjusting the AF settings of each of your lenses. Let your friends, that use other brand of camera than yours, know about the charts.

Download the Charts here right now.

Thank you for following my blogsite for the last six years.

Yvon Bourque

Have you ever had back or front focusing problems? Your problems can be reduced drastically with the Pentax K-01

Email: brqyvn@gmail.com

 Hi Photographer friends,

Have you ever had any back or front focusing problems with your DSLR? It's not an uncommon problem with all brands of DSLR cameras. The tolerance of factory settings are often the cause, but most often, it's caused because the light coming into the camera lens is first reflected onto the mirror and through the prism . If the distance from the mirror center to the Matte glass (A) is slightly different than the distance from the mirror center to the sensor surface  (B), or from the mirror center to the AF detectors (C), you will have a back or front focusing problem. That's a lot of elements that have to be just right to work homogeneously.

Well, the Pentax K-01 can solve that problem. The K-01 is not necessarily the fastest auto focus camera in the world, but AF speed and front/back focusing are completely different problems.

The mirror less cameras don't have front or back focusing problems because they don't have any mirror in the pathway. 

That's another reason why I do like the K-01. Admittedly, I would have like an Optical Viewfinder, (OVF) and actually you can use any OVF from other manufacturers, as long as they fit on the flash bracket and the angle of view  matches that of the the lens you are using.  See examples here and  here

Image from Nikon.

Image from Samsung

Image from Pentax

I just thought this would be interesting for the photographers complaining about front or back focusing.

Best Regards,

Yvon Bourque