All Forum Comments
Comment by Algernon posted on SD Memory cards at 19/10/2012 - 08:06
All good... but No: 2 is Grrreat!!!
Comment by Algernon posted on Introducing Donald at 18/10/2012 - 17:49
I'm talking about the lpmm resolution tests done by
Dr. Stewart Bell in AP years ago.
Generally a 50mm will be better than a 135mm or 200mm whether it's
primes or zooms.
This is a very good Tamron SP Adaptall that's better
at 80mm than at 35mm in terms of both resolution and
contrast.
http://www.adaptall-2.org/lenses/01A.html
and one that's the same throughout the range...
http://www.adaptall-2.org/lenses/30A.html
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Dr. Stewart Bell in AP years ago.
Generally a 50mm will be better than a 135mm or 200mm whether it's
primes or zooms.
This is a very good Tamron SP Adaptall that's better
at 80mm than at 35mm in terms of both resolution and
contrast.
http://www.adaptall-2.org/lenses/01A.html
and one that's the same throughout the range...
http://www.adaptall-2.org/lenses/30A.html
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Comment by Algernon posted on which lens at 18/10/2012 - 17:22
fatspider wrote:
OK Algi, I'm up for this, you take your Pentax battery apart and I'll do my cheap one, then we can compare pics
Having said that would it be safe taking batteries apart?
There's probably just a few other smaller batteries inside OK Algi, I'm up for this, you take your Pentax battery apart and I'll do my cheap one, then we can compare pics
Having said that would it be safe taking batteries apart?
Last year I wanted some C cells (used to be D? ) and I bought some
plastic spacers so that I could use Eneloop AA's, but AA's are
about 1mm longer than C's so I bought 14 Rechargeable Duracell's.....
I just hope this isn't what's inside them......
http://www.naturalnews.com/PhotoTour_Energizer_Batteries_2.html
See also page 2
Comment by Algernon posted on 3rd party battery - K5 at 18/10/2012 - 17:13
I forgot the 203 also does RAW. I'd be interested in seeing
your notes on it.
I may eventually buy the bigger card version rather than the book.
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your notes on it.
I may eventually buy the bigger card version rather than the book.
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Comment by Algernon posted on QPcard 203 at 18/10/2012 - 13:16
ilovesaabs wrote:
The disadvantage of a zoom lens is that it has a range at which it excels, I don't know much about the Sigma zoom but I guess that like most zooms the image quality isn't as good at the fullest extent as further down the range....
whereas the DA*300 excels at 300, and also an F4, which means no issues if you add a converter, the Kenkos are very good.
Don't guess anything about lenses Some zooms such as the old Pentax 80-320mm gave the same performance throughout the range. Some such as the Pentax M 75-150mm were better at the telephoto end. Quite a few Tamrons were also better at the telephoto end.The disadvantage of a zoom lens is that it has a range at which it excels, I don't know much about the Sigma zoom but I guess that like most zooms the image quality isn't as good at the fullest extent as further down the range....
whereas the DA*300 excels at 300, and also an F4, which means no issues if you add a converter, the Kenkos are very good.
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Comment by Algernon posted on which lens at 18/10/2012 - 13:11
I am surprised that after all the years of discussing batteries that
no ones actually taken any apart to see exactly what's inside
and taken a few photos
no ones actually taken any apart to see exactly what's inside
and taken a few photos
Comment by Algernon posted on 3rd party battery - K5 at 18/10/2012 - 13:06
I've used QPCard 201 for sometime and went to order 203, but
when I went to checkout there were all kinds of addons such
as VAT and I think carriage so I cancelled.
Never heard of setting the WB from a grey card before I always
create a new profile from the 201 card.
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when I went to checkout there were all kinds of addons such
as VAT and I think carriage so I cancelled.
Never heard of setting the WB from a grey card before I always
create a new profile from the 201 card.
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Comment by Algernon posted on QPcard 203 at 18/10/2012 - 11:40
pgweber wrote:
The full battery test article is at:
http://forums.dpreview.com/forums/post/37224059
Content for now with Pentax & Energiser versions (though my K10 Hahnel spare had a cover).
Interesting test.The full battery test article is at:
http://forums.dpreview.com/forums/post/37224059
Content for now with Pentax & Energiser versions (though my K10 Hahnel spare had a cover).
I'd be concerned about the variation of the Hahnel in the Fast
test, it didn't look very consistent and the last three cycles
showed the capacity to be falling 1250 - 1196 - 1178
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Comment by Algernon posted on 3rd party battery - K5 at 18/10/2012 - 09:57
I'm just pointing out how dangerous a charged battery is
on it's own.... it doesn't need anything else
"highly flammable and capable of ignition"
See: link
Also: link
on it's own.... it doesn't need anything else
"highly flammable and capable of ignition"
See: link
Also: link
Comment by Algernon posted on Carriage of lithuim batteries as passenger baggage by air at 17/10/2012 - 19:21
http://www.lexar.com/support/sd-uhs-i-faqs
It's a new standard just as SDHC was.