All Forum Comments
Comment by George Lazarette posted on High altitude and digital cameras at 31/12/2006 - 01:11
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Comment by George Lazarette posted on Which film? For the retro feel at 02/01/2007 - 18:06
Anyone? Does 'N' denote a wide angle lens?
You should end up with a number of pictures of the wall which will show how the flash illuminates the wall at the different zoom settings.
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Comment by George Lazarette posted on Cobra D400 + ME Super + no manual = some questions at 07/01/2007 - 20:05
The ones I do use are:
31mm - a great normal lens on digital
77mm - my favourite
K 50mm 1:1.2 - for soft portraits and low light
F 50mm 1.4 - mainly for portraits
F* 300mm - for wildlife
FA 100mm 1:2.8 - for macro
FA 20mm - around town
I would use the 12-24mm if only Pentax would repair it.
For trips I take the 24-90 and F 70-210.
Used occasionally are the M 400mm and the FA* 200mm.
The rest are on the block, as soon as I get round to it.
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Comment by George Lazarette posted on www.PentaxWorld.com for worldwide Pentax users at 02/01/2007 - 14:16
Sigh...
George! Where are you?
Cheers,
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Comment by George Lazarette posted on www.PentaxWorld.com for worldwide Pentax users at 02/01/2007 - 12:58
There is no 70mm macro on the roadmap.
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Comment by George Lazarette posted on Macro Options for K10d at 02/02/2007 - 01:09
Some of the older Pentax and Asahi macro lenses were very good indeed, such as the M series, and even the screw-mount Takumars and Super-Takumars.
The K, M and A 50mm and 100mm macros were superb, and can often be had for very little money. And if you are not shooting fast-moving creepy-crawlies, 50mm can be perfectly satisfactory.
For those of us who like to follow the Riley Rule, Pentax has plenty of possibilities, and they are not all DA lenses.
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Comment by George Lazarette posted on Macro Options for K10d at 31/01/2007 - 00:34
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Comment by George Lazarette posted on eBay WARNING, Sandisk Extreme III 2GB SD Card at 13/01/2007 - 01:06
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Comment by George Lazarette posted on What do Pentax have to do ?.... at 03/02/2007 - 13:44
Going back to the original point posted of why do we need 5x4, the reason is simple...... for big prints!
At the size you are showing us your landscape pics you really cannot differentiate between film formats, especially when they have been scanned. At that size scanning a 35mm and 5x4 they both would look exactly the same.
When larger formats really come into their own is when they are printed to large sizes. Strictly speaking a 5x4 neg is 8x larger than your 645 so you can print 8x larger whilst keeping the same definition. In-fact because 5x4 film is also thicker and has a higher silver density so you also get twice the definition resulting in crisper images.
By all means if your prints rarely exceed A4 then larger formats are not are really not an issue and even the humble 35mm is perfect for the job!
First, the mathematics. 5x4 is 5 times larger than 645 (in area), or roughly 2.5 times in height.
The same ratios for 35mm are 14 times and 4 times.
I think the height ratio is the one to use. If it is comfortable to view an A4 print at, say, 75cms, then a print that was 4 times the height should be viewed from 4 times the distance, say 3 metres.
I don't know about you, but I don't think my eyes would be able to tell the difference between the two, unless I were to go closer to the large print. If I were to do that, I would no longer see the "big picture"; in other words, I would lose the wood and just see the pixels, sorry, trees.
But then, I am a little short-sighted. It may be that younger, eagle-eyed, audiences would gain from seeing a print from the larger format. I unfortunately, wouldn't.
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Comment by George Lazarette posted on Who needs 5x4...??? at 09/04/2007 - 14:11


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