Filter vignetting

by Guy Roberts

My Cokin P series filter system is causing vignetting with the 14-35 f/2 when it is used in conjunction with a polarising filter screwed onto the lens.
Cokin make a filter holder for wide angle lenses, the BPW400A, which should solve the problem, but some reviewers say that it has not solved their vignetting problems, albeit with different camera/lens combinations.
Anyone here had experience of the BPW400A on the 14-35 f/2?
Unfortunately we don't have a shop where I can go and try it out for myself.

Guy

I can't believe how little activity in the forum - I just came back to list my 150 F-2 for sale in the For Sale section and noticed hardly any activity...is the forum alive or dead??

Anyway it is priced right and in great condition - also going on Ebay....

Lens calibration

by Guy Roberts

I just watched a video on BH on phase v contrast AF.
The suggestion seems to be that lens calibration is only necessary for phase AF.
Is this right, and if so will any lens calibrations be ignored when using contrast AF?
Guy

Replacement BLM-5

by Guy Roberts

I bought an Olympus BLM-5 off Amazon, and it does not hold charge. I suspect that it is old stock as Olympus probably don't make it anymore.
Anyone have third party recommendations?

I am going through the e5 manual trying to understand all of the things the e5 is capable of, and got to Dynamic single target AF mode. However when I delve into the menu system on my camera that feature is greyed out.
Any ideas as to what I’m doing wrong?

Upgrading sensors

by Guy Roberts

Could it be it possible to upgrade the sensor in a camera, say put an em1 sensor into an e5, or is it far too complex for that.
It just seems to me that instead of having to buy a whole new camera to get higher resolution etc, if manufacturers could make it so that you could upgrade the old sensor with the new one, cameras would last so much longer.
Just a thought.

I haven't done much shooting these past couple of years. Going through my old files, found some I thought I'd throw into the mix for comments and critiques. Thank you.

Merry Christmas

by Guy Roberts

Merry Christmas to you all, and may 2018 be filled with light for you and yours.

Guy

Spider Cube

by Guy Roberts

I have bought a Spyder 5 monitor calibrator and it came bundled with a Spyder Cube.
Anyone here use this device and if so how useful is it?

Wow, it's very quiet these days.. I guess I'm not the only one who stopped following Olympus 4/3 so closely once any prospect of a real E-5 upgrade faded away. I come back to admit that with all this awesome glass I'm actually finally considering the micro 4/3 body in desperation and it's like crickets in here! discus.. :tony: