Lightnings taking a ride

by ceinmart

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15,848 reputation
2453
bio website j.mp/NZPHOTOS
location Auckland, New Zealand
age
visits member for 4 years
seen yesterday

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
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 ....
Jul
6
comment Laws regarding photos taken from airplane?
@Olin A copy would be interesting to see if still available.
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
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
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, ...
Jun
21
comment When do I have to give credit for the arrangement of photo I took?
My attitudes to them took a bit of setback when they, so long ago that rational people forget :-), decided to test Nukes "in our (distantish) backyard and then sent teams of (incompetent but deadly) top level approved terrorists to sink a protest ship in the harbour a few miles line of sight from where I write this. And then used their trade muscle to ride rough shod over the criminal justice system. That rankled for far longer than it should have but, perhaps surprisingly, Rwanda healed me, when the French waded in on the side of the oppressed when nobody else would. (Regardless of why) ....
Jun
21
comment When do I have to give credit for the arrangement of photo I took?
does not detract from the tower's classic image AND THEN have it declared an original visual creation so that ALL photos of the tower are then under their greedy control. They should also patent the concept and start applying it to everything interesting and visible. What an opportunity. || In NZ they would not be laughed out of court - they'd never get into court. If they choose to visually decorate something in public view it's free to be viewed publicly. Hopefully in NZ theyd not be allowed to desecrate something so important with banal flimflam, as they have done. <curmudgeon_mode=0>
Jun
21
comment When do I have to give credit for the arrangement of photo I took?
Comment only: I sympathise with Susan completely and if all she is wanting is an acknowledgement with the photos then I hope that Uncle Bob has enough decency and sense to comply in a suitably laid back way. | AND | I consider that in the case of the Eiffel Tower the French Courts are morons (in the formal sense of the term), SNET are being typical commercial despicable money grubbers (after full consideration of financial aspects) and deserve formal contempt. If they had any nouse they should decorate the tower in a new paint scheme which is different from the current one but which ....
Jun
16
comment Why do my photos lack texture/detail/microcontrast?
Which lens used? Aperture? Speed? ISO?
Jun
13
comment Does lens resolution matter when it comes to high resolution sensors?
Liable to be of interest DxO 35mm f/1.4 multi brand comparison - do read discussion where tester interacts with users.
Jun
13
comment Does lens resolution matter when it comes to high resolution sensors?
The lens rather than the sensor seems liable to be the limiting factor here (5ds not available for comparison but 17mp max Canon EF 35mm f/1.4L ...
Jun
13
comment Does lens resolution matter when it comes to high resolution sensors?
Yes. Lenses matter (you knew that). BUT decades old lenses MAY still be very good. And top new lenses are unlikely to match the 50mp body resolutions. A lens that exceeds 25mp effective performance is an exceptionally rare one indeed. Start here and work out look at various body and lens combinations. Body (sensor) can make an immense and unexpected difference.
Jun
10
comment Why does my Sony Alpha 77 II sometimes change to a lower resolution on its own?
Interest only: " with no image quality loss," -> on my A77 it's been my impression that I may get better results by using TC than when I post crop to same size. That does not seem to make sense but seems to happen. I should get to doing some controlled playing.
Jun
10
comment Why does my Sony Alpha 77 II sometimes change to a lower resolution on its own?
I (and Occam) like the teleconverter-button-press explanation. This will show in EVF but you could alter zoom to compensate in many cases. The mode resets when you view photos you have taken. || However, as an also ran - if you turn the mode selector knob through the MR position it MAY pick up settings from a memory recall action.
Jun
10
comment Is the odd appearance of this owl's head due to an unusual camera angle, or bad photoshopping?
@noonand I'm glad it was useful. Note that that as with all such things it is necessarily opinion on my part (based on years of poring over digital photos) and some others here may offer contrary advice. I think I'm right - and the photographer's prodigious commercial photo output also suggests he's not likely to bother doing weird things to a photo when he has so many others.