Road Train !!!!!!!!!!

by Russell McMahon

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bio website nbdtech.com/Blog
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visits member for 3 years, 9 months
seen 2 hours ago

I'm a software developer and photography enthusiast.

I've developed Giraffe Upload ( http://www.giraffeupload.com ) a photo backup system and my photography blog is at http://UsefulPhotoTips.com


10h
comment Solutions to Multiple 70D Connected to a single computer?
can't find anything that supports wifi, digiCamControl (digicamcontrol.com) and Breeze systems DSLR Remote Pro Multi-Camera (breezesys.com/MultiCamera/index.htm) both offer multiple camera controls but not wifi (according to the web site, never used any of them)
13h
comment Should I expect better results from more expensive variable ND filters?
Why don't you get a fixed ND filter? a fixed ND filter will have less effect on the image because there's less glass and no polarization - and for the amount of money you are spending on a variable ND filter you should be able to get a set of reasonable quality fixed ND filters at different strengths
Jun
12
comment Desk pictures lighting setup
Can you tell us what equipment/budget you have? the answer for a system camera with $1000+ worth of flashes will be quite different than the answer for a point and shoot with only natural light
Jun
11
comment How do I get a consistent White Balance when shooting different color products?
@Rmano - well, "indecent light" does seem to belong in a different kind of web site
Jun
9
comment How to do jewellery photography with a telephoto lens?
@PhilipKendall - sorry, I'm not an expert in all the 18-55 versions, I was going by reputation and my own faulty memory, I fixed the answer.
May
18
comment Do Left and Right matter in how the photo is perceived?
@RussellMcMahon - you made me laugh - but I'm going to answer your comment seriously - I wrote only about LTR language audience, I suspect (but don't have anything to back it up so I didn't write it) that the reverse isn't true for RTL/vertical languages - but if it does - you can have the subject look slightly down/up or look/move toward one top/bottom corners
May
14
comment Do Left and Right matter in how the photo is perceived?
@mattdm - there is good research that show people scan pictures in reading direction but I can't find any credible scientific study about the feeling difference of LTR vs. RTL images
May
11
comment Why shutter is not closed by-default on mirrorless cameras as it's closed on film ones?
@BrianFunt - the sensor can't stop recording, light sensitive electronics remain light sensitive even when it's inconvenient, "electronic shutter" is implemented by reading the data while the sensor keeps recording, you either get low resolution (when reading the entire sensor at once) or strange artifacts with fast moving subjects (when reading line-by-line), your typical compact point-and-shoot is both low-res (compared to DSLR/mirrorless) and not typically used for high-speed subjects, high-end point and shoots usually have mechanical shutters
May
11
comment Why shutter is not closed by-default on mirrorless cameras as it's closed on film ones?
@BrianFunt - the shutter need to close when you finish taking a picture, when the shutter closes no more light is hitting the sensor so the camera can spend some time reading the data off the sensor without new light changing the data while it is being read
Apr
22
comment What is the best paint to use to make backdrops for studio photography with blown out white backgrounds, and dark black backgrounds
@yoshiserry in the past I've successfully used one $70 Chinese speedlight and a cream-ish off-white wall to create a white background image. the more expensive lights are better but you don't need that much light unless you need to overpower the sun or have a huge area to light. in a studio, photographing one or two people, a 3 or 4 speedlight kit will give you all the power you really need and a good 500 watt set (preferably with adjustable power) will give you all the extra power, speed and flexibility you will ever want.
Mar
31
comment Can using a reflector or external flash soften harsh natural light, or just fill in shadows?
@Morpho - this is not a problem, you can control the power and softness of the light by moving the reflector closer of farther from the model and by using a bigger or smaller reflector, it's all controllable and you should play around until you get the look you want - and you probably don't want balance, balanced light is boring, interesting light has direction and shadows and often color - and if you do want balance you don't do it in direct sunlight, you find some shade.
Mar
31
comment What are meaningful deciding factors when deciding between Canon 5D mark III vs mark II?
@Morpho - (cont from prev comment) ... the phase detect auto focus in the 5Dmk3 with a new lens is both fast and accurate, it focuses as well as contrast detection or very careful manual focus (the focusing mistake is too small to detect) - now the 5Dmk3 does not miss focus because of the camera technology limitations, but, this only translates to better images if: 1. you had a focusing problem to begin with (if you don't shoot with shallow DOF the old system is accurate enough), 2. you have good technique (photographer mistakes cause much larger error than camera mistakes)
Mar
31
comment What are meaningful deciding factors when deciding between Canon 5D mark III vs mark II?
@Morpho - phase detect auto focus systems are designed to be fast at the cost of being less accurate, the camera focuses at some range around the object the focus point is on and not exactly on that object, normally you don't notice it because it's close enough and less then your DOF - but if you have a very shallow DOF you can see your picture isn't properly focused (you tried to focus on the eye but it missed and either the tip of the nose or the ear is in sharpest focus) ... (cont in next comment)
Mar
31
comment What are meaningful deciding factors when deciding between Canon 5D mark III vs mark II?
@Morpho - it means that you get smaller focusing errors - if you have problems with missed focus (and your equipment and technique are good) it can help.
Mar
31
comment What are meaningful deciding factors when deciding between Canon 5D mark III vs mark II?
@Morpho - The new focus system is still better than the old one even with older lenses (but doesn't enjoy the new accuracy improvement) most Canon lenses released since 2010 have the extra electronics to get the high accuracy, for more details visit lensrentals.com/blog/2012/08/…
Mar
31
comment What are meaningful deciding factors when deciding between Canon 5D mark III vs mark II?
@Morpho - phase detect auto focus systema traditionally trade accuracy for speed - the new system in the 5Dmk3 and the 1Dx is very fast but it's also much more accurate than older systems, older systems has a lot of variation and often miss by a bit and focus just to the front or back of the subject - the new system has a lot less variation and has way less focusing errors.
Mar
27
comment Why there is no full-frame lenses with leaf shutter?
What you wrote is true for new systems but you didn't address adding a leaf shutter to the established FF systems (Canon/Nikon), they both don't have the electronic connections to control a shutter in the lens - so if they decide to come up with a leaf shutter lens it will require a new version of the lens mount and be incompatible with all existing bodies - making the potential market quite small
Mar
20
comment Is the Nokia Lumia 1020 a suitable replacement for my aging Canon G3?
@cimmanon the G3 is a good high-end point-and-shoot, I know because I almost bought one as a second camera, it's not somewhere between a P&S and a DSLR - a DSLR is a system with replaceable parts that can be adapted to anything, it's a completely different world, I personally love it and can't imagine going back from a bag full of equipment to a simple camera - but it's not for everyone, if you want a simple camera both Canon and Nikon make really good high end P&S - and the high end Nokia phones are amazing for their size and weight (but a phone lasts only ~3 years before you need to upgrade)
Jan
9
comment Why don't cameras support journaled filesystems?
@strugee - I didn't say OS X doesn't have a journaling file system - I said there is no single system that both OS X and Windows can use out of the box (Windows doesn't understand HFS+ at all and Macs (by default) can't write NTFS)
Dec
15
comment How to price my photos to be used on someone else's website?
@Rmano - if you have no intention of going pro and this is a one time deal you can sell the images at any price, there are free on-line calculators that can give you a starting point for negotiation (and you'll probably going to negotiate down from that price). I don't like the "cut of article sold" model, as a business owner I would never give a cut of the profit in exchange for a photo (unless it's a dead product and I have nothing to lose) and I wouldn't give my products in exchange for a cut (unless it's a sure thing) giving/getting a cut isn't a fair deal unless you go in as a partner