JAK

Joined: 29th January 2010

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JAK
While I know you're right John, I'd been searching my old negatives (circa 1980) for these focal length comparison photos I took for a camera club talk so I felt I must just share these. Hopefully this will put the discussion to rest. The aim was to show the effect on the background while keeping the subject the same size using different focal length lenses. All were taken at f/4 on my ME.

20mm
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50mm
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100mm
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I reckon the photos speak for themselves without any ambiguity.
For info, the building is Valetine's Mansion in Valentine's Park in Ilford, Essex.

Comment by JAK posted on You poo-pood my comment at 22/03/2017 - 15:36

JAK
Hi and welcome to PU. I got one like that too from a boot sale last year and was wondering what to do about it. A search found a video on Youtube which may be the answer, albeit on a different model: link
I still need to pluck up courage to try it but as my MG only cost a fiver complete with 50mm lens (which is fine) I guess I have nothing to loose attempting it.

Comment by JAK posted on MG won't wind at 21/03/2017 - 22:37

JAK
Thanks for that. I never found a need for a grip with the ME/MX even though such a thing existed. Perhaps we've just got used to the current designs that features one natively to hold the batteries.

Comment by JAK posted on Pentax KP Grip Sizes at 21/03/2017 - 20:28

JAK
wvbarnes wrote:
Not impressed! Gets worse every time we travel medium or long haul.
Get yourself a Cessna!

Comment by JAK posted on No more digital cameras allowed in carry on baggage at 21/03/2017 - 17:56

JAK
There'll be a rush in getting Pentax Q's now then.
Actually it reads like a Trump idea - only MiddleEast to US flights affected, and he's made his thoughts on those flights clear already.

Comment by JAK posted on No more digital cameras allowed in carry on baggage at 21/03/2017 - 17:48

JAK
How usable is the KP without any of the grips? Any different to a film ME/MX etc?

Comment by JAK posted on Pentax KP Grip Sizes at 21/03/2017 - 14:19

JAK
walkeja wrote:
HarisF1 wrote:
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I just stacked the two images (Poo1 and Poo2 respectively) and got this final image. Look at how the base is visibly different even though the badge lines up fairly well.

Had the badge been a large 3d object (and not something fairly flat) then it would also have been distorted.
Seeing as the badge was the object, case proved!
But that isn't what you said, you stated "if you move closer to an object, the image is the same.." You don't need a degree to see they're not; you've poo-pood yourself there. One has to accept that the image is the whole photograph of course, not just part of it. The badge seen in 2D from a front on viewpoint will of course appear the same, obliquely it wouldn't, but the badge isn't the whole image.
Come on, admit it, you didn't say what you meant!

Comment by JAK posted on You poo-pood my comment at 21/03/2017 - 11:27

JAK
A long time ago I did (actually in 1977):
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This was with a plastic body cap partly cut-out with some aluminium cooking foil stuck to it in which the pinhole was made. Just making a pin hole directly into the plastic might not give a clean edged circle.
I can't remember if that was taken with an ME (which had only just come out) or more likely an ageing ESII.

Comment by JAK posted on Pinhole Pentax at 20/03/2017 - 11:46

JAK
Look forward to that John.

Comment by JAK posted on Spamming photos in the gallery at 19/03/2017 - 18:48

JAK
What you said before is "if you move closer to an object, the image is the same if you use the correct lens." Now you're saying the object is the same so do you now agree the images taken from different viewpoints will be different? Even moving a bit to the left or right will end up with different images, that's the basis for stereoscopic photography which wouldn't be possible if the images are the same. Viewmaster must have got it all wrong!

Comment by JAK posted on You poo-pood my comment at 19/03/2017 - 15:26

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