PLUS

johnriley

Joined: 19th March 2002

All Forum Comments

Topics Created Topics Contributed Forum Comments Photo Comments

All Forum Comments

johnriley
Subjects are bound to come up again. Does it matter? We can always look at something afresh.

Comment by johnriley posted on What Reason Makes You Choose Pentax? at 14/02/2014 - 10:35

johnriley
Quote:
You can't set it at the factory
It's called Quality Control. All sorts of parameters on cameras and lenses are set at the factory. They have vastly expensive equipment to calibrate and adjust.

Comment by johnriley posted on AF Adjustment at 14/02/2014 - 09:27

johnriley
There's a section marked "Pentax Ricoh Cameras" that's fairly new and was intended for the compacts.

Whatever section there are, some posters seem to put their opening posts randomly sometimes!

Comment by johnriley posted on Time to change some forum names? at 14/02/2014 - 08:19

johnriley
Quote:
I disagree John. How can it 'be calibrated at the factory' when the manufacturer cannot account for the combination of camera body and lens that we use?
There are permissible tolerances that are very fine. These tolerances are designed to fall within the depth of focus. As long as they do, then all will be well. I'm talking here of Pentax cameras with Pentax lenses. The manufacturer knows how much leeway in manufacture is permissible.

Now if we are talking about Pentax cameras with other makes of lens, then it's quite possible that some will fall outside the tolerances and benefit from adjustment.

Comment by johnriley posted on AF Adjustment at 14/02/2014 - 08:16

johnriley
We seem to cover this every now and again. I haven't ever found a lens that didn't focus where it was supposed to.

Even the camera instructions caution against calibrating unless it's really necessary. There are so many variables, including length of focus travel, direction of focus, distance, zoom setting....

Call me old fashioned, but they should be set at the factory. This was never a problem until recently, and it's only become one since the mechanism to fiddle was made available to us. I think they made it available because some people were messing in the service menus anyway.

Comment by johnriley posted on AF Adjustment at 13/02/2014 - 23:55

johnriley
Quote:
So who has actually had a camera fail due to water ingress and what were the circumstances?
Long walk in pouring rain - my daughter has polished off two cameras in this way.

For me, weather sealing is now pretty much an essential feature for the DSLRs.

Comment by johnriley posted on How many people actually need weather sealing? at 13/02/2014 - 23:39

johnriley
Pentax cameras will be on the LCE stand L70.

http://www.photographyshow.com/page.cfm/Action=Exhib/ExhibID=226/loadSearch=2609_452

Comment by johnriley posted on Pentax at the NEC at 13/02/2014 - 17:21

johnriley
Title sorted.

Comment by johnriley posted on Converter at 13/02/2014 - 16:44

johnriley
Yes it can make a difference, depending on how the browser deals with it. The internet is an sRGB environment so if we want our images to look right on all devices that's the way to present them.

Comment by johnriley posted on River View at 13/02/2014 - 16:31

johnriley
There was a small news item in AP, quoting the MD of Ricoh UK. He was saying that the focus of all their efforts in 2014 would be to build up the Pentax DSLR ranges and make Pentax a much bigger part of Ricoh.

He also said that it was their intent to work on pulling buyers away from Nikon/Canon/Sony.

Comment by johnriley posted on News Item from AP at 13/02/2014 - 16:27

Proudly supporting Pentax User

Samsung Logo Asahi Pentax Logo