PLUS

johnriley

Joined: 19th March 2002

All Forum Comments

Topics Created Topics Contributed Forum Comments Photo Comments

All Forum Comments

johnriley
We're assuming high quality enlarging lenses, there are plenty of good Nikkors to be had.

Comment by johnriley posted on reversing lens at 23/09/2011 - 10:02

johnriley
Pseaudo-Infra Red can be achieved in Photoshop from the full colour file, by using Channel Mixer. Hit monochrome, up the red, up the green, down with the blue. The red and green can be adjusted to make sure the tonal range is OK.

Of the Pentax DSLRs I have used, the *istDS, K-r and K-5 respond well to this and the K10D and K20D do not.

The best cameras for this, without modification, are apparently old Kodak 2MP compacts.

Comment by johnriley posted on Infra Red? at 23/09/2011 - 10:00

johnriley
Enlarging lenses, being designed to work at short distances, do make excellent macro lenses on a bellows.

Comment by johnriley posted on reversing lens at 22/09/2011 - 23:55

johnriley
I've no idea what all this is about, but we don't need another argumentative thread I'm sure.

Hence I shall close this one off lest we feel tempted to continue.

Back to photography.....

Comment by johnriley posted on Oh! The irony. at 22/09/2011 - 22:30

johnriley
Welcome! I'll pop this thread into the Just Joined section so others may say hello.

Comment by johnriley posted on Hi, I'm new here at 22/09/2011 - 16:11

johnriley
If you want to see some impressive bug hunting, have a look at the portfolio of CarolG on ePHOTOzine.

Comment by johnriley posted on THE WEEKEND at 22/09/2011 - 13:45

johnriley
Quote:
Do many beginners have CS5?
You might be surprised. It certainly continually surprises me. I've only just got CS5, thanks to an attractive offer from Amazon.

Comment by johnriley posted on THE WEEKEND at 22/09/2011 - 13:33

johnriley
Moved over to General Chat. Incidentally, according to my iPhone the weather will not be kind this weekend. Prepare those WR lenses....

Comment by johnriley posted on THE WEEKEND at 22/09/2011 - 12:41

johnriley
A Beginners Digital Workshop on Saturday morning will keep me busy for a couple of hours.

Many Photoshop users are still rather hazy about the basics, and those new to digital photography certainly are.

The basics for those who don't want to get too involved are in the six beginners articles I did for PU, but of course this develops and changes with time.

One of the problems I see is people starting off with Photoshop CS5 and being totally out of their depth with it. Using it in the wrong way doesn't lead to better images.

What the programme will be will depend upon who attends and what their needs are, but we'll hopefully have a good session.

Comment by johnriley posted on THE WEEKEND at 22/09/2011 - 12:26

johnriley
Lucky escape Ken, glad there were no injuries.

Comment by johnriley posted on Another pointless thread at 22/09/2011 - 11:33

Proudly supporting Pentax User

Samsung Logo Asahi Pentax Logo