Category Archives: Technique

A little tweak here ….

Photographs, Technique

…. a little color there.

The beauty of the adjustments in Lightroom (I’m on 1.4.1) is that the results are seen instantly on the screen and the sliders for these are really quite intuitive – not something that can be said of the industrial might of Photoshop with its poor user interface. Further, unlike Aperture, which I no longer use, you do not need the latest liquid helium cooled MacPro with 16 gB of RAM and the latest $2,000 graphics card to run the thing at half decent speed – an old iMac G4 more than suffices and you can probably pick one of those up for $50 with a nice big screen at a yard sale.


Canon 5D, 24-105mm at 58mm, 1/250, f/8, ISO 100

Here you can see the bland original (underneath) and the final versions of this snap. The final adjustments can be seen here from Lightroom’s History panel – look at the right hand column of data.


Adjustment history for the image above

That seems like a lot of work until you realize it took about a minute or so to do, aided by the nice large 21.6″ Samsung LCD screen attached to my MacBook. Exotic? Hardly. Available today for under $200 from many makers. Viewsonic now lists a 22″ screen for as low as $160 – a perfect accessory for the MacBook’s small screen whose gloss finish does little to help photographers. The aftermarket screens come with matt surfaces, as they should. Another example where Apple’s marketing focus does little to serve users. Unless you are in a pretty dark room, the glossy screen is a real pain to use, but Apple no longer markets a matt screen version.

The Vibrance and Clarity sliders are especially useful in giving your image ‘pop’, but I find it’s easy to overdo things. A little goes a long way. Unlike the 50mm Canon f/1.4 optic, the 24-105mm L zoom used here displays no color fringing. Instead you get severe barrel distortion at 24mm, not something that’s visible here.

Immersive media

Panoramas

A step up from QTVR.

I have written a lot in this journal about my discovery and adoption of QTVR 360 degree virtual reality photography using Quicktime and a special camera mount. If you would like to see some of the results of my efforts, please click here.

Now all of that is old hat!


Immersive Media’s Dodeca 360 camera

How about a 360 degree movie version? Click here for a demonstration. The camera, by Immersive Media has no fewer than eleven lenses and can be worn on the head, for those seeking to emulate the man from Mars. It seems pretty light.

Now where’s my check book?

Large prints on canvas

Printing

Up to 86″ a side!

I came across this site while looking for a large print service.

They certainly use the right printers and fade free inks as this excerpt from their FAQ states:

“What kind of equipment are you using to print on canvas?

Photogonia uses state of the art printers like HP DESIGNJET 5500 series and EPSON STYLUS PRO 9800. These large format printers deliver high quality print jobs that fit the high standards that Photogonia sets for our products.

What kind of Ink are you using?

PhotoGonia uses ONLY original factory Inks like HP 83 UV Ink Cartridges for our HP printers and 8-color Epson Ultra Chrome K3â„¢ Ink For our Epson printers. PhotoGonia doesn’t use refills, third party Ink or generic Ink. ”

A 40″ x 30″ ‘gallery wrap’ canvas (the printed edges are stretched over the frame) is $322.50, shipped. Not cheap, but the alternative of buying an ultra-wide carriage printer for one or two prints a year is hardly a viable choice. For that matter, unless you regularly make large prints, this sort of service makes sense for any photographer limited by the 13″ carriage width common on home ink jet printers.

Ring flash

Technique

An awful lot to like.

The ring flash I have been using on the 5D with the 100mm Canon macro lens is proving to be a real joy. It’s pretty much set and forget. All I do is adjust ISO to procure an f/11 aperture with the camera on shutter priority and 1/200th (the fastest sync speed) and the circuitry in the flash takes care of balancing natural and artificial light. In use I simply leave the flash switched on all day – battery drain is only significant when recharging as opposed to maintaing a charged state. My current set of four alkaline AA batteries has lasted for some 16 hours and two hundred or so snaps, and shows no sign of dying.

F/11? That, I find, gives the best balance of definition and depth of field. Smaller apertures introduce diffraction and definition begins to fall – that’s physics, not Canon. Wider apertures at close distances result in very shallow depth of field – appropriate for plane, perpendicular surfaces only. ISO seems to end up in the range 100 to 400, which is the sweet spot for the 5D’s sensor. Nice!

Reflections of the tube in the ring flash can be an issue – though the sort seen here just enhances the sense of curves.

Occasionally, with reflective subjects, you get a nasty image of the flash tube reflected in the subject, like so:


Note reflections from the sun and the ring flash

I do not know whether the enhanced localised processing controls in Lightroom 2.0 could fix this – I”m still on 1.4.x and await 2.1, presumably suitably debugged. In the meanwhile, it’s back to that old dog Photoshop (Lightroom has a direct export and save function) and a few seconds with the Magic Eraser:


After using the Magic Eraser in PS CS2

That’s more like it. French Racing Blue never looked better. The wide brimmed individual on the left is none other than famed racing driver and backdrop man, Franklin Rudolph.

Ink and paper supplies

Printing

For heavy users.

I have made, and continue to make, many large prints on the Hewlett Packard HP90 Designjet printer. While it’s being phased out it remains broadly available if you do a Google search, typically selling for under $900. If you have priced other fade-free ink jet wide carriage printers, then you will know this is a superb bargain. Add a small desktop footprint and print quality to die for – and it works perfectly with Mac’s Tiger and Leopard OS – and you have a tremendous bargain. After some thirty months of use I would buy another at the drop of a hat if needs dictated.

Printers, however, are increasingly marketed using the Gillette razor model – give away the printer and clean up on the supplies. While HP has no need to give away a non-mass market device like the DJ90, ink and paper still take their toll on the budget if you make a lot of prints.

When it comes to consumables I have long been a believer in using the manufacturer’s recommended products. There’s little point in saving a dollar or two on refilled ink cartridges if the risk is that your printer heads clog up or the inks fade with age. With paper, I have found that HP’s Premium Plus photo satin is superb and maintains its surface sheen when the print is dry mounted at ~190F (88C) in a press. Much warmer than that and the surface looks less pleasant. While rumor has it that HP’s paper is made by Hahnemuhle in Germany, there’s little incentive to use aftermarket papers when each involves a tedious profiling and test session. So I stick with what works for me and now that I have digital’s dynamic range limitations under control, why bother with anything else? One more example where consistency takes out a complex set of variables from the equation. A good thing.

Given the need to have a spare cartridge of each of the six colors used in the HP (the printer uses ink frugally but you can bet you will run out when you least expect it), I found myself about to place an order at my photo retailer of choice, B&H in NYC, the other day. Then, what with the newly found need for frugality dictated by America’s total absence of an energy policy, I recalled that someone had mentioned a Florida vendor named Atlex. A quick click and comparison (3 ink cartridges and 40 sheets of 18″ x 24″ paper – $252 delivered to CA) disclosed that Atlex’s price was some 18% less than B&H’s. Now I like B&H and they have never let me down but 18% is non trivial. Loyalty to my pocket book wins every time. Atlex – their site claims they have been at it for over 25 years – also stocks Epson and Canon printer supplies, all original maker labelled, so what’s not to like? And, unless you live in Florida, you will be doing your bit by starving the beast that is government as you no longer pay sales taxes to the organized crime bosses masquerading as state government.

This is an opportune time to remind users not to mess with roll paper. Even if you have a proper roll paper holder and built-in cutting knife like in the HP DesignJet, life is simply too short to mess with severely rolled up paper supplies – just try to dry mount a print which prefers to roll up. I have tried. It was hell. Use cut sheets.