Monday, July 21, 2008

High ISO and FP Flash Fun

When you need high shutter speeds to capture action in early evening situations, nothing impresses more than theD300's higher ISO's and FP flash. Shot a few images at a pool party tonight while experimenting with this approach - here's a couple keepers with some added manipulation in Adobe Lightroom.

DSLR D300 w/ 16-85/3.5-5.6 VRII
Flash SB-800 Speedlight
ISO's 1800 + 6400

Attached Image
6400 ISO @ 1/1000 f5.6 w/ +100 Sharpening (Amount, Radius, Detail), +100 Luminance NR

Produced a very cool grainy effect and revealed decent image detail...


Attached Image
1800 ISO @ 1/1000 f5 w/ +100 Blacks, +100 Clarity, -100 Vibrance,

High contrast and color shift adds a different look...

The D300 and SB-800 work beautifully together in creating images from 1800 to 6400 ISO's - add FP flash and you have a powerful nighttime image machine at close quarters.

Sunday, July 20, 2008

The Wedding Shooter

You know how some people want your exact settings to replicate when they try something? I used to get irritated by that, but this time it might be useful. My familiarity with the Nikon D300 is growing, and combining my experience with the SB-800 Speedlight, Auto ISO, D-Lighting and other Nikon technologies is making this business a lot more productive - and fun.

On this three-hour assignment, I shot 703 RAW images at an outdoor wedding in sunny 96-degree weather. Here's what I used and how I did it:

Location Outdoors (backyard wedding)
Lighting Direct sun > open shade > late afternoon cross lighting

DSLR D300 w/ MB-D10 Grip
Lens 16-85/3.5-5.6 AF-S VRII
S Mode set to 1/250th
AF Mode AF-S and AF-C (as needed)
Apertures varied from f5.6 - f6.3 (with flash)
Auto ISO activated (never left base ISO with SB-800 in use)
D-Lighting Normal level
NR Off
Matrix Metering used in shaded areas (with no sky in the frame)
Spot Metering for bright and mixed lighting scenes
SB-800 iTTL and set as fill on D300

Initially set to ISO 200, I later moved the base ISO to 400 to get a smaller aperture, but that was about it. Shot in S mode with the shutter pegged at 1/250th with fill flash selected and the SB-800 picked the apertures - between 5.6 and 6.3 for the most part, but I didn't really pay any attention since the 16-85 has already proven to me that it can and critical even shoot wide open very well. Made a few adjustments along the way to soften the fill flash, etc. but generally kept an eye on the histograms and worked toward an ideal exposure for each frame.

I'm more impressed with the D300/SB-800 combi than the last time I did a wedding - mainly cuz I know more of what I'm doing! Used to freak a little when shooting in direct sunlight, but now I just don't worry about it. I find the right level of fill (via the histograms mostly) and spent very little time dealing with the camera at all - just shot, chimped and went back to shooting. Even as late afternoon cross lighting began to appear, I did nothing else to control exposure - the D300 and SB-800 did just fine on their own.

AF was sufficiently quick - quicker really in AF-C cuz it doesn't have to confirm focus before firing. In 96-degree weather, I discovered the NiMH batts get incredibly hot when I do my changeout after the ceremony. They performed beautifully, though, with frequent bursts at close range and a keeper image each time. A second set of NiMH's carries me through the reception with no problems. The MB-D10 battery power never really dipped with no power load on the body but basic shooting functions - the vertical release was a welcome addition.

I'll adjust final exposure, contrast and saturation in Lightroom where the fabulous Synch feature allows for rapid processing of these adjustments to every image group, as well as creative effects along the way for some variety.

All in all, a much more comfortable experience than ever. The setting left a lot to be desired - open yard with little or no gardens and trees. Background mountain scenery was awesome but not terribly useable where we were shooting. Still, a technically successful shoot and one that left me looking forward to the next one with greater confidence and appreciation for all things Nikon.

Tuesday, July 15, 2008

Auto ISO: Pro's Secret or Fool's Errand?

Regarded by some as an amateur contrivance, Auto ISO is truly one of the most powerful tools available on your DSLR. Combined with our knowledge of handling noise successfully, having automated ISO as part of your shooting strategy is a mark of maturity among knowledgeable shooters. How so?

Situation You're covering an outdoor event on a sunny day (or a high contrast stage lighting environment) where lighting is different everywhere you turn. The dynamic range of the scenes is often far beyond our sensors ability to record easily. We need need intuitive camera control!

Problem We've got our favorite mode in place - A, S , P or even Manual. Spot metering is isolating our subject for accurate exposures. AF is in Continuous Mode with Tracking Lock-on activated. iTTL flash is at the ready to add fill and, eventually, become our main light source. Seems like we're in control, but as the lighting changes and the day draws on bringing afternoon shadows... keeping an accurate exposure is a dizzying accomplishment. Then, as light fades, the flash ceases to expose adequately, so we raise the ISO manually. Later, we resort to exposure compensation dialing. Then flash compensation dialing. Shutter speeds slow and apertures widen - creating mental fatigue which is robbing us of enthusiasm and creativity. What to do?

Solution Enter Auto ISO - champion of automated camera control! With one swift switch, we have continuously automated adjustment of all the aforementioned areas. Set to run from a 1/8th shutter speed and up to the top ISO available, our camera will now follow our lead obediently. Watch it work...

Set up in Program, A, or S mode, as light increases Auto ISO lowers sensor speeds, shutter speeds increase and flash output fills automatically. As light dims, Program mode will to respect our need to use handheld settings, while A and S modes adjust their respective variables to suit the situation. In the background, ISO moves up or down to maintain these desired camera operations.

In A or S mode, we can hold onto our desired f-stop or shutter speed as ISO moves around for us - but this is a bit less flexible in realtime use as you push ISO's up more quickly at f8 or a 1/250th shutter speed. Good lenses shoot well more side open and VR optics give us easy handheld capability in the 1/25th range - this will really extend Auto ISO's contribution.

Ingeniously, as light diminishes, Auto ISO coordinates usable settings with Nikon's superb iTTL flash adding more output to illuminate the scene as needed - going from fill to main when the need arises. Recycle times will be affected more by our default f-stop or shutter speed, so haggle out a workable combination of shooting at f4.5 or 1/25th and Auto ISO will take up the slack nicely.

For the most part the camera is now self-running - very cool. The other side of Auto ISO is proficient postprocessing. Top end DSLR's (D2x, D200, D300, D3) will handle noise fairly almost to their ISO limits. Midrange DSLR shooters (D40, D40x, D50, D70, D60, D80) will need to avoids excessively high ISO's to keep images from breaking up on the computer - set your ISO limit to around 1600 to be safe.

With Auto ISO, we can extend the range of useful operation in any situation until we either run out of recordable ambient light or available flash power. I prefer to use S mode to maintain handheld shutter speeds during a wedding or even casual snapshooting. you can create your own strategy based on shooting preferences you practiced over the years. Any way you do it, Auto ISO givs you greater control of fast moving, action-packed shooting... use it!

Monday, July 14, 2008

D300 Noise - What's All the Commotion About?

The D300 sensor is markedly better at high ISO's than the D200, and even the D2x. After reading up on some pictorialized reviews and comparisons, I found one reviewer's suggestion worth considering - turn Hi ISO NR Reduction to Low or Off. Huh? Makes sense actually. All that NR does is smear detail, so it'd be worth it to try to go without before stirring the pot, eh? I decided to give it another chance in my routine shooting technique... how so?

Let's start by repeating once again that underexposure is a major faux pas, and that it introduces noise immediately in underexposed (I prefer to call them unexposed) areas. Routinely overexposing at 1/3 of a stop is the right way to go with plenty of recoverable highlight data available in today's RAW files. Well-lit subjects (sports, birds, etc.) in particular won't suffer from noise like those dimly lit artistic shots taken at twilight. So use of higher ISO's shouldn't be an issue until there isn't enough light - ambient or artificial. (Sports shooters have been going this route for a long time, and with the advent of the D3 are pushing this envelope even further!)

Tests done on the D300 against its competitors reveal a tremendous high ISO performance in properly exposed images with half the noise of Nikon's previous top DX models. Do your own tests to discover this advancement - preferably with flash for maximum color saturation and proper contrast levels.

My initial test results below are RAW images taken with my new 16-85/3.5-5.6 VR Nikkor and the D300's built-in flash for a full histogram of data. The D300 was set with NR Off and images were saved as 800-pixel JPGs at the 100% Quality setting. (These are 350k+ images, so download 'em and take a closer look on your own screen.)

First, an unedited 200 ISO image...

Attached Image
200 ISO

Then, unedited 800/1600 ISO images and their counterparts with 100% Luminance NR applied in Lightroom to fully impact the image for noise reduction.

Attached Image
800 ISO

Attached Image
800 ISO w/ 100% Luminance NR

Attached Image
1600 ISO

Attached Image
1600 ISO w/ 100% Luminance NR

On my monitor, even at 1600 ISO, image quality is simply superb - excellent tonal range and fine detail is very well maintained. For any use other than stock photo submissions or extreme enlargement, you will get excellent results from 8X10 size prints to litho reproduction in brochures and magazines at the 800 and 1600 ISO settings.

Well, there you have it - no need to make a lot of noise over the D300. It is the 'quietest' DX camera available and designed to handle high ISO's very smoothly. Next, we'll be exploring the advantages of the Auto ISO feature for the most flexible shooting technique ever developed by Nikon. Stay tuned...

Saturday, July 5, 2008

When Does 3/4" Equal Two Feet?

When you drop a DL650 V-Strom's suspension 3/4" and finally get both feet on the ground - that's when. I've tipped my Wee over several times and was getting pretty tired of the embarrassment and tipsy slow speed handling. For this modification, we need what are called lowering links...

Lowering links (aka dogbones) change up the geometry of the rear wheel via the pivoting shock mount arm that connects the rear monoshock to the frame. I know, it doesn't make sense to read this so just take a look under your bike and you'll see what's involved. The monoshock is attached to a alloy casting that articulates the monoshock while pivoting on the frame itself. Two flat metal 'dogbones' determine the overall height of the ride based on their overall length. Lengthening the links shortens the frame height, which lowers the bike. It's really just that simple. More than a 3/4" lowering will significantly change this bike's handling and road clearances, so make sure you need more drop before you start messin' around with this important aspect on your V-Strom. This is strictly an at-your-own-risk modification for mechanically-inclined bike owners, so if something isn't clear to you - don't do it!

Didn't know if the cheaper aluminum lowering links that sell for $17 on eBay would be stout enough to replace the steel OEM parts, so I went for a Kevin Baker's nicely finished steel lowering links ($44 shipped) and won't have to worry about it. Murph's mailed 'em out ASAP and they were waiting for me when I returned from a 10-day work week in Missouri.

Rear Suspension Links
Installation is pretty simple - remove two nut (17mm) and bolt (14mm) assemblies and changeout OEM dogbones with the KB's. You will need to create 5-6" of swingarm lift to get the bottom bolt on the KB dogbone started in the shock arm - I employed a square-edged shovel under the limp rear tire to leverage the swingarm up. Wasn't the swiftest approach but in a one-man situation it did the trick. A block and 2X4 would be the simplest way to do it but you'll figure something out when you get to that point. Regreasing the shock arm bearings and putting some blue removable LockTight on the link mounting nuts are two more smart details in this part changeout. Other than that it's a cakewalk...

Front Fork
To complement the geometry change in the rear suspension, a drop of the tripletree in the front forks is needed. This is even easier - just loosen the three 10mm bolts on each side and retighten finger tight. Take a rubber hammer and firmly strike the middle portion of the handlebars to slowly move the top tripletree downward. Establish a visual starting point of the shock tubes and stop when you get to within 5/8"-3/4" of the shock tube showing above the tripletree. DO NOT exceed 3/4" or you risk slamming the top of the shock tube into the lower tripletree!! Take your time, hammer and measure frequently, and it'll go very smoothly. Tighten all the 10mm bolts up as tight as you can get them by hand.

So, what's it like to ride 3/4" lower on a Wee? Awesome! At 5'10" with a 32" inseam, I can easily prop this beast up at a redlight now for safer braking to a standstill and takeoffs in traffic. With the CG (center of gravity) closer to the ground, there's no more tipsy balancing act on uneven surfaces. No more nervous slow speed maneuvers and turnarounds. Clearance is more than adequate for the street and the center stand and kickstand continue to operate just fine too - a greater drop than this will necessitate mods that you won't want to have to make.

On the road, the Wee is starting to handle more like a sportbike! Not quite an SV clone, of course, but it's a much more manageable adventure touring setup than what came out of the factory.

Saturday, June 21, 2008

Nikkor 16-85/3.5-5.6G AF-S DX ED Review




16-85/3.5-5.6G ED AF-S DX Nikkor

Nikon's newest prosumer zoom - the 5.3X Nikkor 16-85/3.5-5.6G ED AF-S DX VR - is an appealing wide angle to short tele design that will fit many shooters needs. A more useful range at each end has been added to overcome the limits of the 18-70 and 24-120 DX models. Unsatisfactory performance has plagued both the 18-135 and 18-200 kit lens offerings from Nikon with numerous comments from users that are moving to pro glass as a result. Will the 16-85 keep the average Nikon afficianado happy or not? Preliminary reviews show a decent performance for daylight shooters - will semipros and serious amateurs feel the same way? Time will tell...

Overall, I get a positive impression from the construct of the 16-85. Apparently built out of the same plastics as the 18-70 and 24-120, it exudes a quality feel with smooth turning rings and clean finish. The zoom ring has an obvious friction (my preference) with no sag or slop in the telescoping lens components. The focus ring is smooth and well damped. A thin, vertically oriented rubber gasket encircles the lens mount gap when mounted on camera. More of a 'flap' than the type of gasket you would find on your car's oil filter, it keeps dust out of the mirror box but is itself exposed and deserves a little care to avoid damage.

The peculiarities of the new Nikkor are not significant but worth knowing:
- The AF-ON switch will not activate the VR - partially depressing the shutter release is needed for focusing.
- Turn the camera off before detaching or attaching any VRII lens
- VR will not be available on cameras with built-in flash while it is recharging.
- Do not operate in the presence of flammable gases or with wet hands.

How does the 16-85 feel? On my D300 body, the 17-ounce optic falls right in place with the zoom ring at a comfortable distance that does not require moving your palm away from the edge of the camera body for handholding (I seldom use the manual focus ring but its right there close to the body and out of the way for steady AF use). It's the same width as the 18-70 and a tad shorter than the 24-120. It takes on an almost weightlessness when added to my D300 with the MB-D10 grip attached.

AF-S
Test images taken in my office confirmed that the 16-85's AF-S snapped into focus consistently even in low room light with indistinct subjects - even at the wide open f5.6 aperture at the 85mm focal length. Accuracy is also excellent with no errors on the camera's part in my test images. This unit should keep up just fine in general action situations - high speed sports or other scenarios will likely need to be well lit for optimum performance.

VRII
This feature is very subjective since time is needed to establish image stability in each shot and then decide when to release the shutter. My initial experience with the 24-120 VR is improved noticeably with this optic and I expect to get better as I use VR more often - but it is a voodoo hat trick in my book and everyone will have a different take on it. I like it and am becoming more dependent on VR to get a sharp image.

VR draws its current from the body power source, so carry spare batts in steady use - neither me or Nikon have any idea how long the camera can support using VR at the track or during events you'd employ it for. You gain an almost unlimited power supply when adding the MB-D10 grip to your D300, which includes longer shoot time using the popup flash as well.

Image Quality
Initial images gave me this impression- we've got another winner!

16mm
Attached Image

Attached Image
CA is minimal by f4 - still present at f8
Image edges are very good by f4
Overall image is very good at f4 & gets better at f5.6
Obvious field curvature
Detail at infinity very good at f3.5


35mm
Attached Image

Attached Image
No CA 'wide open' at f4.5
Image edges are very good at f4.5


50mm
Attached Image

Attached Image
No CA 'wide open' at f5
Very ittle degradation at f22

70mm
Attached Image

Attached Image
Some CA wide open at f5.6
Image edges are very good at f5.6

85mm
Attached Image

Attached Image
No CA wide open at f5.6
Image edges are fairly good at f5.6

Conclusion
Taken as a whole, the 16-86 VR is a very well controlled lens, including above average wide open performance at all focal lengths - with truly good images just above 16mm especially. One stop down from wide open is all it took to bring images into a very good rating and just another stop to give great overall performance (according to 1:1 previews in Lightroom). Typical optical compromises in the 16-85 have allowed some visible CA and obvious distortion - still, Nikon is making real progress in this price category, which drew one reviewer to think that a 17-55 pro glass buy might be wasted money.

While the $600 street price point might be a stretch for some, the 16-85 is money well spent in spite of its slow lens speed if you factor in the wide to short tele focal range and VRII features. My lovable 18-70 has now been transferred to the D40 body and the 16-85 is the new 'normal' zoom on my D300.

Monday, May 26, 2008

MPG & Cost of Ownership

I've noticed a few folks already slowing up their average speed on the road. Will it really save them some fuel? Yes, a little. But not enough to save the amount they're going to need to fuel that vehicle in the future. It's time to reconsider the vehicle you're driving and get one that best suits your actual needs based on cost of ownership.

It's not too complicated to see how much the cost of your next fuel-saving vehicles will impact your gas bill. Fuel mileage is taking centerstage faster and faster nowadays and the money spent on better MPG's will more quickly outpace the time it takes to offset a car's price tag.

Using a 15,000 average miles driven per year and a soon-to-be $4 per gallon gas price, see how quickly fuel costs outpace the price differences of your car.

24 MPG Vehicles
625 gallons per year X $4 per gallon = $2500
Monthly Fuel Cost: $208

35 MPG Vehicles
428.5 gallons per year X $4 per gallon = $1714
Monthly Fuel Cost: $142

At a more common 20,000 annual mileage average, the differences add up even faster:

24 MPG Vehicles
833 gallons per year X $4 per gallon = $3332
Monthly Fuel Cost: $277

35 MPG Vehicles
571 gallons per year X $4 per gallon = $2285
Monthly Fuel Cost: $190

Cost of ownership affects more than the monthly household budget. Cost is affected by length of ownership and operating costs accrued over that ownership period. The greatest economy can only be achieved when the cost of ownership is spread out over longest period of time. Trade-in and resale values will soon hold fewer advantages than in previous years when operation costs (purchase price, taxes, title and registration fees, financing interest, fuel, insurance, maintenance) were cheaper and permitted frequent changes in vehicle ownership.

Calculating total cost of ownership for your vehicle is sobering when fully considered. For example, a $15,000 vehicle comes with many costs. For example:

Purchase Price: $15000 + fees
Taxes: $1000+ per year
Insurance: $800-$1000 per year
Financing Interest: $400-$600 per year
Fuel: $1700 - $3300 per year ($2500 average @ $4 per gallon)
Maintenance: $250-$500 per year

Typical Cost of Ownership $600-$700 per month or $22 per day

The moral of this story is simple:
Drive as cheaply as possible - gas is just going to get more expensive.
Don't drive unless you have a reason - get organized to control this lifestyle cost.
Watch every contributing expense that affects cost of vehicle ownership - from checking insurance rates to keeping your tires properly inflated.
Slow down a bit and fill up less often.