Lightnings taking a ride

by ceinmart

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24,098 reputation
476136
bio website 365project.org/imrelumiste
location Finland
age 35
visits member for 4 years, 5 months
seen 6 hours ago

Jun
23
revised What is the meaning of having 9 focus points and how to see where they are?
where are the 9 points?
Jun
23
asked How to test what aperture is actually used?
Jun
23
revised What is the meaning of having 9 focus points and how to see where they are?
added 93 characters in body
Jun
23
answered What is the meaning of having 9 focus points and how to see where they are?
Jun
23
comment Why is the front element of a telephoto lens larger than a wide angle lens?
The inner tube diameter only matters around front element because behind front element, the light rays are already bent and take less room than the full aperture. I suspect the smaller-than-required front element (giving a mere f/6.3, missing third a stop) might be a case of manufacturer lying, meaning only that thanks to low losses in quality glass exposure is similar to what you could expect from f/5.6.
Jun
23
comment Why is the front element of a telephoto lens larger than a wide angle lens?
The last paragraph seems confusing. I don't think there are any 100-400 or 80-400 lenses that claim to be f/4 at 400 mm. Could you bring an example of 400mm f/4 with front element less than 100mm? Both Canon and Pentax seem to be larger than 100mm.
Jun
23
revised How can I get more of this macro photo in focus?
title and tags
Jun
23
revised How can I get sharp manual focus despite poor eyesight?
optional white or yellow markers can be selected
Jun
23
comment What is the fastest lens available for a DSLR?
Micro 4/3 cameras are not DSLRs‌​. For a DSLR, 50mm f/1.1 with an adapter is the fastest lens offered under Voigtländer name.
Jun
22
comment What is “bokeh panorama” (also called the “Brenizer method”)?
So, to simulate the never-seen 24mm f/0.2, should I use a lens with 120 mm aperture, e.g. 500mm f/4? That'd be interesting, though it takes several hundreds of shots to cover the 24 mm FOV...
Jun
22
revised What are the depth-of-field capabilities of point & shoot cameras?
learned about Brenizer method, seems relevant here; added 241 characters in body
Jun
22
accepted How to achieve shallower DOF using multiple exposures?
Jun
22
revised How to achieve shallower DOF using multiple exposures?
added 133 characters in body
Jun
22
revised How to achieve shallower DOF using multiple exposures?
added 4 characters in body
Jun
22
asked How to achieve shallower DOF using multiple exposures?
Jun
22
answered How do I create a panoramic picture?
Jun
22
accepted What's the best way to avoid wasting money on equipment?
Jun
22
comment Are there significant challengers to the Secure Digital format for cameras on the horizon?
@Billy Yes, the conversion will probably start from compacts as they have direct competition pressure and less bandwidth needs. Losing features from pro bodies is usually handled more conservatively.
Jun
22
answered Are there significant challengers to the Secure Digital format for cameras on the horizon?
Jun
22
awarded  Enlightened