DoctorJeff

Joined: 12th January 2009

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DoctorJeff
You have to remember that one size does not fit all.
What you shoot determines which lens you need.
You wallet determines if you fit that lens.
Personally, I found that the FA 35-70 filled most of my needs from walkabout (when I still could) to portraits, and gave me a win in a club competition. There are others in the bag, but that one gets used more than all the rest.

Geoff

Comment by DoctorJeff posted on Best Wide to Zoom Lens for Pentax K10d at 17/11/2013 - 23:17

DoctorJeff
To get into "el cheapo" country, why not an AF240Z (Pentax of course).
At least you know that the trigger voltage will not cause any problems.
Set the flash on Auto, and the body on "X"
Alternatively read:
https://www.pentaxuser.com/forum/topic/pentax-af240z-on-k20d-15189
Just remember to take the lens of the "A" setting.

Geoff

Comment by DoctorJeff posted on Questions re a Good Flash for my Pentax K10d at 17/11/2013 - 23:09

DoctorJeff
First thought is envy - I wish I had made that image!

Being more critical:
Have you tried cropping a tiny bit off the bottom, 'cos there might just be a bit too much white for some people.
There is a tiny spot of cloud on the top edge left of centre that might just draw the eye away from the middle (could easily be altered with PS).
Have you considered cropping about 20% from the right side, or about 5% from the left. I think that you could get several good images from the one.

The last thought is still envy!

Geoff

Comment by DoctorJeff posted on Another for Critique :) at 24/10/2013 - 22:33

DoctorJeff
Looks like a good advert for RTFM.
For a camera - just what was the point?
Geoff

Comment by DoctorJeff posted on Pentax K50 Advert at 17/10/2013 - 11:22

DoctorJeff
I don't "do" Facebook - I have some issues with their security.
As your page stands, my first reaction is "Why Bother?"
You have some excellent images, that deserve to be seen at full-screen, but all the chit-chat is just plain distracting.
The opening cartoon could offend some people.
Since people do have to join Facebook to "connect" with you, it does seem a lot of work just to publicise your phone no.
My gut reaction is that you will turn potential corporate clients away.

Geoff

Comment by DoctorJeff posted on Facebook at 09/10/2013 - 10:54

DoctorJeff
FWIW - The body promoting tourism in my county, and an associated magazine have a competition for images of the county. In the small print is a statement that the organizers have an absolute right to use any submitted image, anywhere, anytime, and may pass the image on to anyone they wanted to. So I walked away.

There are times when walking away is the only real option - and this looks to be one of them. They may just realise what they have lost.

Geoff

Comment by DoctorJeff posted on The © Symbol Woes? at 06/10/2013 - 21:58

DoctorJeff
I bought mine from T-mart.
Came (with fitting tweezers) in a zip-up hardshell case - good for keeping the original screen in
Would not change back.
Geoff

Comment by DoctorJeff posted on split focus screen k20d at 22/09/2013 - 22:25

DoctorJeff
The answer to the question you asked is Image > Resize.

Why do it that way, when you may need more than one passport sized photo? Certainly, you will need two for a pasport application.
I did a simple template in Powerpoint - two vertical and two horizontal lines, the correct distance apart. Roughly resized the picture in PS, saved as a top-quality .jpg, imported into the Powerpoint template and then dragged into size. The whole job took just a few minutes.

Now you can copy and past the resized picture a number of times (putting the new one into the horizontal tramlines) and save it as a Powererpoint slide. Print onto cheap A4 Photo paper from your favourite cheaper grocery store and trim to size. If you are picky, you can remove the tramlines first, but you may find them an aid to trimming.

Do note that there are other requirements for Passport photos (pose, background, etc) that you have to comply with as well. Keep the original powerpoint template, others in tha family may need it.

Geoff

Comment by DoctorJeff posted on Passport size photo at 07/09/2013 - 10:23

DoctorJeff
Well it won't lock because there is no radial groove for the locking pin to slide into. Ergo, it is not a Pentax fit lens.
Geoff

Comment by DoctorJeff posted on adapters at 27/08/2013 - 22:53

DoctorJeff
Jamie wrote:
Quote:
I'm sorry but I don't understand your last two sentences - I can't see where magnification comes into it - it's the laws of physics and consequently the decrease in field of view seen through the smaller sensor.
I guess that you are having a little problem with the "laws of physics" Jamie.
The focal length of a lens determines the acceptance angle of that lens. In lay terms, that is it's "seeing angle". Because there is a difference in the size of the sensor between 35mm and a DSLR (and it really does not matter whether the sensor is a piece of coated celluloid or a piece of CCD electronics) there is an effect analagous to magnification when a lens designed for use on a 35mm is used on a DSLR.

In very crude terms, what comes in at the front is spread over more or less of the area where the sensor is located (the film plane or picture plane). It is not a change in the field of view, since that is deternined my the focal length (see above). Some of us think in terms of "35mm equivalency" others prefer to think in terms of "Crop factor". There are good technical arguments for the use of either term

Now, a question for you ...
You quote Nick Rains, and you yourself have objected to an equivalence factor of 1.6. This is a Pentax forum and the relevant factor is 1.5.
Are we to infer that your opinion was formed in relation to another brand of equipment?

Geoff

Comment by DoctorJeff posted on Manual focus zooms on dslr question at 15/07/2013 - 23:40

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