Tell me why?

womble
Posted 13/09/2014 - 21:45 Link
Just spent a fun day at the Duxford Air Show (apart from taking two hours to get out of the car park). Remarkable quantities of camera equipment and long (and largely expensive) glass. Given that, can any one tell me why:

1. One needs to use the hi-speed motordrive function and take five or six identical images of a static subject on the ground?

2. Why one needs to use one's built in flash to photograph a plane in flight about a mile away?

3. What is the purpose of having the lens hood reversed when taking a photograph?

Answers on a postcard, please...

By the way, I was one of only three people I saw who was shooting at any film, although I'll admit I only shot one roll of Fuji Neopan 1600 compared to several hundred digital images. My £40 Tamron 70-300 wasn't ideal but some of the shots were OK-ish. Not up to Mike-p's standard, but not too bad for my first air show.

K.
Kris Lockyear
It is an illusion that photos are made with the camera… they are made with the eye, heart and head. Henri Cartier-Bresson
Lots of film bodies, a couple of digital ones, too many lenses (mainly older glass) and a Horseman LE 5x4.
K10D
Posted 14/09/2014 - 00:14 Link
Sounds like you had an interesting day Kris.

Possible explanations:

1) Was the camera tripod mounted? If so maybe HDR? Otherwise the user was probably compensating for not having a license to use an MP5.

2) This is simple Kris, the flash attracts the attention of the pilot who then ends up looking straight at the camera and hey presto, you have "that shot".

3) This one is purely technical and involves aerodynamics. Should a slight breeze be present, one risks the possibility of additional turbulence caused by the partial cavitation - negative pressure disturbance anomaly. This of course induces irregular vibration into the optics resulting in an blurred image.

Hope this explains it in layman's terms.

Best regards
Too far from a shore.
gartmore
Posted 14/09/2014 - 07:06 Link
Now we know
Ken
“We must avoid however, snapping away, shooting quickly and without thought, overloading ourselves with unnecessary images that clutter our memory and diminish the clarity of the whole.” - Henri Cartier-Bresson -
Horst
Posted 14/09/2014 - 13:47 Link
Quote:
3) This one is purely technical and involves aerodynamics. Should a slight breeze be present, one risks the possibility of additional turbulence caused by the partial cavitation - negative pressure disturbance anomaly. This of course induces irregular vibration into the optics resulting in an blurred image.
You made a good case here.

Maybe from now on we'll have streamlined lens hoods.

Regards, Horst
K10D
Posted 15/09/2014 - 02:11 Link
Horst wrote:
Quote:
3) This one is purely technical and involves aerodynamics. Should a slight breeze be present, one risks the possibility of additional turbulence caused by the partial cavitation - negative pressure disturbance anomaly. This of course induces irregular vibration into the optics resulting in an blurred image.
You made a good case here.

Maybe from now on we'll have streamlined lens hoods.

Regards, Horst
The simpler eason was to avoid the hood/flash cut off shadow on the airborn aircraft or indeed the pilots face.

Best regards
Too far from a shore.
ilovesaabs
Posted 15/09/2014 - 09:59 Link
1) because you can
2) because you can - makes you look profeshunal 'innit?
3) one has mastered the aim in the toilets so that the hood is no longer necessary to protect the front element from 'splashback' :urgh:
AKA Welshwizard/PWynneJ
Assorted Pentax/Nikon/Mamiya stuff

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