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Russell McMahon

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12,488 reputation
1239
bio website j.mp/NZPHOTOS
location Auckland, New Zealand
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visits member for 1 year, 10 months
seen yesterday
stats profile views 353

Electronic designer. Professional Engineer. Oldish aka "reasonably experienced" :-). Contact - apptechnz gmail com <- you know the drill.

Special interest in technological solutions for developing country applications. Extensive in-China experience in product development & manufacturing in China. Jack of all trades, Master of Electrical engineering. (aka ME (elec)) Interested in all aspects of modern technology. Professional qualifications in electrical engineering but practically proficient or conversant in many peripheral areas. Recent extensive experience in solar powered LED lighting development and manufacturing in China for markets worldwide.

"Servant of the Most High God" / committed Christian. Happy to work enthusiastically and interact amicably with people of all nationalities and creeds.

Married with 2 adult children.

Obsessional photographer.


279 Answers

newest activity votes
43
What can be done using a 18-55mm lens?
mar 6 '12 at 15:10
22
Are mirror lenses good for wildlife photography in daylight?
mar 12 '12 at 12:36
20
Laws regarding photos taken from airplane?
jul 11 '12 at 12:50
18
How does the dynamic range of the human eye compare to that of digital cameras?
mar 22 '12 at 13:46
16
Why does a 15-second exposure on my camera actually last 16 seconds?
mar 25 '12 at 7:00
16
Why does fungus form in lenses, and how to get rid of it?
aug 10 '11 at 23:30
15
How to photograph a room showing both room & view out a window?
apr 2 at 11:07
14
Without modification, is the built-in pop-up flash EVER appropriate?
apr 10 '12 at 5:46
14
How can I hold my camera steady?
dec 14 '11 at 4:08
13
What kind of effect can I hope to achieve by hand-holding a filter at an angle?
jun 19 '12 at 15:51
13
Why isn't saving photos as TIFF files a popular choice by DSLR manufacturers?
may 10 '12 at 15:29
12
Why are my city night pics more blurred than I expect, and what can I do about it?
jun 6 '12 at 11:37
12
Is a self-cleaning sensor necessary when using only one lens?
apr 16 '12 at 13:22
12
What is the lowest level of luminous flux a camera can detect?
mar 27 '12 at 22:03
11
How to avoid dark window when shooting from inside
sep 14 at 9:49
11
How should I approach people to take their portrait?
jul 6 '12 at 16:53
11
What is the best way to digitize old photographs for preservation?
apr 23 '12 at 8:13
10
What technique can I use for shooting pet birds in cages?
mar 1 at 11:31
10
Do professionals use auto mode?
aug 26 at 16:55
10
Should I buy a adapter ring with or without AF confirm?
aug 20 at 10:07
10
Lens in salt water - now what?
mar 29 '12 at 14:32
10
Should I put UV filter to protect the lens even if I put a lens hood?
apr 27 '12 at 3:01
10
What is a good cheap camera for new photographer who wants to take pictures of people at gigs, shows etc. Also street art, views?
may 15 '12 at 9:45
10
When a camera auto-focuses, is the current focus distance reported from the lens to the camera?
mar 26 '12 at 1:26
10
What is the most effective way to remove a fence in the foreground?
mar 25 '12 at 11:47
10
Are there rechargeable batteries which don't discharge when idle?
aug 10 '11 at 14:25
9
How to fix a dropped Nikon D5100 - black screen, will not take pictures?
jan 27 at 21:42
9
Is it necessary to fully drain Ni-MH batteries before recharging them?
oct 8 at 11:46
9
Why are objects far away inverted through a lens but not through the viewfinder?
mar 20 '12 at 7:14
9
What is EV, when used as an absoute measurement?
feb 13 '12 at 10:23
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