Algernon

Joined: 22nd May 2010

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Algernon
Probably not profitable.

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Comment by Algernon posted on K-3II Now Officially Discontinued at 03/02/2018 - 10:23

Algernon
Items are safer packed loose I remember a 'Tomorrows World' program on the BBC where they dropped items tightly wrapped in paper and loose in a cardboard box from the top of a 12 foot stepladder. A delicate china cup and an egg both smashed when wrapped (separate boxes), but survived loose The box might have had a 12mm polystyrene lining and was the same for both.


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Comment by Algernon posted on Amazon lens prices at 02/02/2018 - 18:18

Algernon
Amazon packaging is sorted by computer. It compares the box dimensions and chooses from about 15 boxes one that will fit You won't believe how big a box a walking stick or window blade comes in

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Comment by Algernon posted on Amazon lens prices at 02/02/2018 - 17:54

Algernon
petrochemist wrote:
Algernon wrote:
It's lit by the SUN so the Sunny 16 Rule should work.

200ISO = 1/200th at f/16 OR
1/800th at f/8

Possibly overexpose slightly.

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The 'Loony 8' rule is more suitable as it's specifically tailored to the moon (& it has a great name). Just as sunny 16 but open up another 2 stops.

FWIW this works at all phases of the moon but isn't right for eclipses, although we didn't get the blood moon here. When heavily eclipsed the light on the moon is over 4000 times dimmer.
RobL's is exactly the Sunny 16 rule and most of the others are very close. It seems that a lot of togs use the 'Loony 11' Rule in order to lighten it a bit.

http://thenewcamera.com/looney-11-and-sunny-16-rules/

Modern digital cameras can easily tolerate underexposure and it protects the highlights so Sunny 16 should be OK.

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Comment by Algernon posted on Tonight's Supermoon (31 Jan 2018) at 01/02/2018 - 16:42

Algernon
It's lit by the SUN so the Sunny 16 Rule should work.

200ISO = 1/200th at f/16 OR
1/800th at f/8

Possibly overexpose slightly.

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Comment by Algernon posted on Tonight's Supermoon (31 Jan 2018) at 01/02/2018 - 10:31

Algernon
I think they just pick up the most popular ones from Flickr. The latest lenses are bought just to fondle not take photos for Flickr

Ricoh also mess things up by putting Ricoh in the exif instead of Pentax

For cameras Pentax is 12th most popular and Ricoh 13th It would be higher if they just used Pentax. Free advertising and they don't want it

https://www.flickr.com/cameras?s=rank#brands

I wish you could exclude posters on searches on Flickriver some posters are quite prolific and very often not what your looking for and are sometimes scanned from film.
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Comment by Algernon posted on Flickriver list a few Pentax lenses ..... at 31/01/2018 - 19:04

Algernon
Flickriver list a few Pentax lenses. Some say we need more and they haven't bought half of them

http://www.flickriver.com/lenses/pentax/

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Comment by Algernon posted on Flickriver list a few Pentax lenses ..... at 31/01/2018 - 15:28

Algernon
They usually supply later when they get new stock if they run out.

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Comment by Algernon posted on Amazon lens prices at 30/01/2018 - 20:01

Algernon
Once in a Blue Moon Prices

Blue Moon tomorrow

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Comment by Algernon posted on Amazon lens prices at 30/01/2018 - 16:22

Algernon
Isn't the extra pin for the Spotmatic F to allow wide open metering?

Wide open metering used by all modern cameras was just a ticklist requirement. Lenses vignette differently wide open and give false readings. Stop down metering is a lot more accurate because it's done at the aperture your using.

I suppose with computers in cameras they could apply a correction based on the lens ID, but I've never heard any company say that they do.
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Comment by Algernon posted on So, you want a 28mm lens in m42 fit at 30/01/2018 - 08:13

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