Serene Life

by garik

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visits member for 3 years, 6 months
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Oct
21
comment How and why do you use an image histogram?
It is also very useful in the opposite condition: if you have been shooting for a long time i low light, then your eyes are accustomed to low light and get into hiper-sensitive mode. The pictures in the LCD will appear too bright to the sensitive eye, but the histogram will tell you closer to actual truth whether your exposure is correct. It also saves you if someone fiddled with your LCD's brightness setting.
Oct
21
comment How and why do you use an image histogram?
Similar test performed on camera: Using "neutral" or "faithful" setting take a picture. Changhe the setting to one that heavily increases contrast and take the same picture (same framing, exposure values, lighting. Preferably without moving the camera from a tripod and right after the first take). Now compare both histograms in camera. They will look diferent, even if the camera was in RAW-Only mode.
Oct
21
comment How and why do you use an image histogram?
Simple proof that Histogram shown is derived from the equivalent JPG: In any Editing/Developing software that allows you to view the image and the applied settings before exporting to a JPG file: each time you make and adjustment like exposure, contrast, curves, etc. The histogram changes. Would this make sense if the histogram was read from the RAW data that has not changed?
Oct
11
comment How can I make a picture like this one of a bridge in green landscape seem less plain?
I use a shortcut for your process: close or cover one eye and look at the picture while "defocusing" the sight. It helps when there are a lot of pictures to evaluate. +1 for the adjustment layers too. If you work with lightroom, local (brushed) adjustments are neat as well.
Sep
18
comment How to get long hair to fan?
This may sound funny but is not a joke: Ask a hairdresser. Maybe your model's hair is "heavy", and there may be a way of makin it lighter, thus easier to fly. For example, hair can be heavy because it had an anti-friz cream applied, or hair gel, or any similar thing. So a hairdresser may know to achieve the look you need for the photo but with lighter hair. Straight (as in opposed to curly) hair that has just been dried with a normal hair dryer is easier to fly.
Aug
22
comment Closeup lenses: do size affect their performance? and how?
@user28116: Only after your comment I understood the intention of the second paragraph. Being that I currently own the mentioned lenses, If I got my hand on one set of diopters, they would be used only on the matching lens.
Aug
18
comment Manual photography cheat sheet — where can I find one, or what should be on it?
This is actually a great idea! Simple, functional, practical.
Aug
18
comment What is an easy way to remember the full stop scale?
This has been said in answers already, but for me it has been as simple as memorizing "3". I take a base aperture and know that three cliks up or down is a full aperture stop. In My case I use 5.6 since that is the max that my current zooms have at max focal length. Constantly using only full stop apertures has led me to remembering them whithout specifir effort on memory. Ultimatelly I use f5.6, f.8 and f.11 the most, so they are in my head all the time, if I need to go somewhere else, I go three clicks every time...
Aug
18
comment What is an easy way to remember the full stop scale?
The "three click" part is the easy way the OP is really asking for, the rest is too complicated for people who don't like math.
Aug
14
comment Smartphone/Tablet assistant Apps
@Penta: This comment clarifies what you are originally asking. Would you consider rewording your question and possibly include a couple more of examples like your app? Thay would attract better awsers.
Aug
5
comment Do TTL flashes always “count” as a single pre-flash?
As far as I know, preflash is actually a series of flashes, the camera uses several of them to "guess" the correct setting. These pulses are not as strong as a definitive flash firing. Some slave units have a mode that ignores these low power firings, and react only to the final, definitive firing. I only know the YngNuo YN560 manual flash, wich I use with a Canon, and they work this way. Sony may have a different way.
Aug
4
comment Are there any DSLRs which can charge the battery via USB?
Most DSLR batteries I have seen are near the range of 7.2 volts, and definitely much higher than 0.5 amp. To charge such a big battery from the limited current that a USB port allows would take too much time, and would seem unpractical. (A typical computer's USB port delivers 0.5 amperes at 5 volts). Smaller cameras can be charged from USB ports because they have smaller batteries.
Jul
25
comment Why are Micro Four Thirds lenses so expensive compared to Canon?
Please take into account that manufacturer may label the lens for the equivalent focal lenght, rather than the actual (physical) focal length. I have owned two Olympus cameras (E-300 and Evolt E-500), a currently have Canon 50D. When I compare them for crop factor, If I set the lens on both brands on the same fl mark, I get quite similar framing for the same scene/distance/point of viev. (Canon lens being an EF-S one).
Jun
14
comment When does it help to use scene modes?
It helps when it is necessary for a person not knowing how to use your camera properly to take a picture with it, like when a family member takes a snapshot of you in a vacation. Instead of explaining anything, just pop in a scene mode. It also prevents from loosing your settings on the manual mode (in most cameras).
Jun
14
comment Why is my SD card filling up too quickly?
Just in case: IF you used a MAC computer for reading and deleted some of the pics, they actually are still in the card but as hidden files. (A Windows system configured to show hidden files will help. An Android system will show the files and allow you to delete them). If I recall correctly, MAC puts deleted files in a .trashes folder.
Mar
5
comment Why do some umbrellas have black cover instead of silver?
the cover indeed is on the convex side. What I meant is that when using umbrella in reflective mode, part of the light bounces right away on first hitting the white material on concave side, but almost half goes through and is possibly lost. Using a silver cover on the convex side, facing the white fabric would catch this light and bounce it back to the translucent white, where it would shine trhough back to the concave side, adding up to the light that bounced directly, saving you almost a stop of light from your source.
Nov
23
comment If I swallowed my SD Card would it be readable when it emerged?
I've seen a lot of suggestions about micro sd cards. Why not having a big piece of chewing gum and sticking the microSD in there. IF you swallowed it, it would lessen chances of sticking in throat and would reduce exposure to acid, but you may manage to escape without having to "wait", specially if you do the swap with a card full of "innocent" picts.
Aug
16
comment What kind of earplugs are best for concert photography?
I have successfully used a pair of earplugs from my phone to protect my hearing while usind a reallly noisy grinder (I know it's not the same) in a confined comfined workspace. They were not plugged to the phone nor a music player. They were in ear type, of the kind that are "noise blocking" with a mushrom-like rubber fitting. I'm not suggesting these for long term use, but they can serve in an emergency if you have them in hand.
May
28
comment How to record the viewfinder while shooting?
I performed the experiment using an Olympus XZ-1 on the viewfinder of a Canon 50D. The Olympus could get an understandable image but it was not wide enough to cover the full viewfinder's image plus the exposure meter and the outer indicators. Also tried with a cell phone's camera, but it had an even narrower angle of view.
Apr
10
comment How to record the viewfinder while shooting?
Believe me I'm definitely goint to try this at home and come back to show my results!