Lightnings taking a ride

by ceinmart

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15,868 reputation
2453
bio website j.mp/NZPHOTOS
location Auckland, New Zealand
age
visits member for 4 years
seen 22 hours ago

merge keep
Contact - apptechnz at gmail com <- you know the drill.

Electronic designer. Professional Engineer. Oldish aka "reasonably experienced" :-).
Contact - apptechnz gmail com <- you know the drill.
Tel: +64 9 837 2999 gmt+13

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.


Aug
20
answered Can low tempertures permanently decrease the life of a camera battery?
Aug
13
comment Are RAWs in bracketed exposure (mostly) redundant?
.... I care much less about fine detail than whether I like the result and I think that in photos which were intended to be 'top quality' I'd notice that level of noise - even if I did not actually'care' about it in many cases. ie I think that those who seem to care quite a lot more than I often do about noise levels would find the differences significant.
Aug
13
comment Are RAWs in bracketed exposure (mostly) redundant?
Personal impression only - not a criticism of expressed opinion: A look at the +/- 1EV version at 100% crop shows there is substantially more noise in the single exposure version than in the 3 exposure version. This is visible across quite a lot of the image but especially so in the more shadowed areas eg on the base of the airconditioning unit. While this level of noise degradation would probably go unnoticed by most at eg typical screen resolutions I suspect it would start to show at 4K levels and in eg A4 prints. | This may sound like classic "pixel peeping", but for my own purposes ....
Aug
10
awarded  Yearling
Aug
5
revised Does street photography including children introduce any specific concern?
deleted 6 characters in body
Jul
15
awarded  Necromancer
Jul
10
revised Should I buy an original manufacturer battery, or is a generic brand OK?
added 2437 characters in body
Jul
8
revised Laws regarding photos taken from airplane?
added 84 characters in body
Jul
7
awarded  Good Answer
Jul
6
comment Laws regarding photos taken from airplane?
@Olin A copy would be interesting to see if still available.
Jul
5
revised Laws regarding photos taken from airplane?
Updated for 2015 conditions.Some spelling fixes. Changes how 2 photos are seen.
Jun
30
comment What battery types are suitable for low temperatures and high altitudes?
@ChrisWalton Yes - I responded now as Christoph noted about 5 hours ago that the link was broken. | The page you cite is OK but a bit general. I think it has been made by combining or just copying material fom elsewhere. eg Gargoyle "The LiFePO4 batteries are the safest type of Lithium batteries as they will not overheat, and even if punctured they will not catch on fire."and you get a significant number of other papers with that and assorted other text identical. | I've got a 40 Ah 24V LiFePO4 battery running here as part of a prototype system.
Jun
30
comment What battery types are suitable for low temperatures and high altitudes?
@Christoph - Substitute paper provided - not identical in theme.
Jun
30
revised What battery types are suitable for low temperatures and high altitudes?
added 255 characters in body
Jun
25
comment Which Canon lens should I get for portraits/weddings?
See - opinion is fickle :-)
Jun
25
comment Which Canon lens should I get for portraits/weddings?
DP Review review and Results on aan EOS 7D and DxO ratings -hover over the dots near the top right end to see what lens they relate to. Note where this lens rates. That's the sharpness chart but click tabs for others.
Jun
25
comment Which Canon lens should I get for portraits/weddings?
@BillOer re "... One lens that I can use to shoot an entire wedding as a secondary photographer, party in one go without changing. ..." A single prime is POSSIBLE but will be extremely limiting.You ask 'why a zoom' -> A: because it's a good idea BUT the 70-200 is too long in many cases in the situations you mention. You mention only Canon's own glass. I recommend thaat you look i=on lens comparison sites and compare the performance of the following lens with alternatives you might consider. Then buy one :-). Tamron 24-70mm f/2.8 VC Di USD. Note it has vibration compensation inbuilt. ...
Jun
22
revised Do professionals use auto mode?
added 10 characters in body
Jun
21
comment When do I have to give credit for the arrangement of photo I took?
... to send the 'Legion' to disconnect the lights until such time as SNET come to their senses :-).
Jun
21
comment When do I have to give credit for the arrangement of photo I took?
.... AND it was the higher government powers that sent the saboteurs, after all. SO staus quo restored even though the memories are probably there for life. RW event was '85, Rwanda was '94 so both now long ago. And I again can empathise with the people of a country that express a love of freedom in so many ways - but tolerate the crass commercialisation of a national (and international) treasure. I'd have expected the government to have enacted legislation as required, or, at the least, ...