Category Archives: Photography

Lightroom 2 tutorials

Lightroom

Assessing whether to upgrade.

Now that Lightroom 2.0 has come and gone, with the usual fixes for basic bugs which should never have left Adobe’s labs (Americans always prefer garbage today to quality tomorrow), Lightroom 2.1 is beginning to intrigue me. I’m still using 1.4.1 because it’s stable and does what I need, but one of the appeals of 2.1 is the ability to do localized adjustments without hopping over to Photoshop. That’s something I tend to avoid like the plague.

The other evening as I was flipping though photography podcasts on the Apple TV – you can do the same on your computer (Mac or the other kind) using iTunes – I came across a counterintuitively named one going by the title Photowalkthrough.

Here’s the download page in iTunes – just search in iTunes on ‘Photowalkthrough’.

The podcasts of interest are the ones on Lightroom 2. I have watched a couple and there are really nice on screen demos of the use of the local adjustment brush which seems to be the key feature added in LR2. I was especially impressed by the auto masking feature which restricts edits to, say, backgrounds or foregrounds, based on the outline of the object concerned. No need to outline the item in advance, as you might in Photoshop.

I seem to recall reading that the upgrade from LR 1 is some $100 and after watching a few more of these I may well spring for the cost. There’s a 30 day free trial version available, of which more here.

How many pixels?

Cameras

Most of the time!

It never ceases to amaze me how photographers will splash out on the latest megapixel wonder camera. Point-and-shoots now often boast over 10 megapixels and DSLRs are now up to 22+ mps in full frame sensors. Yet where do all those pictures end up? Why, on a computer screen of course, likely 20″ diagonal in size or less.

Scroll down a while and take a look at the many articles here where I include snaps to illustrate some hardware issue. Chances are that the picture was made with my ancient (5 years old) Olympus 5050Z – a 5 megapixel camera which I use at its lowest quality setting, generating 640 x 480 pixel images – 0.3 megapixels. That’s nice as I can upload them to this journal without any further compression. It probably sells used for well under $100.

Before they got caught up in the pixel race, Nikon’s professional DSLRs offered a relatively low pixel count, preferring to focus on sturdiness and speed of operation. The 3 or 4 mp originals were more than good enough for newspaper work, most of the time, and even then the quality of the original could not possibly be reflected in newsprint reproduction.

So my take on all of this is that the only photographers needing more than 640 x 480 are those making large prints (like me!) and pros working for large format glossy magazines where the difference matters (half a dozen other guys).

Of course, if you were to show up at a modeling session with Linda Evangelista, say, with my little Oly, I do suspect that you might be unceremoniously shown the door, but that’s not to say your pictures would have been any worse than the pro’s had you actually been allowed to take them

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.

Canon – you need to fix your glass

Lenses

Simply unacceptable color fringing.


5D, 50mm f/1.4 at f/8 – after and before correcting for green and red chromatic aberration

When processing the picture included in yesterday’s journal entry, I was reminded again of the truly frightful extent of uncorrected chromatic aberration (color fringing) in Canon’s 50mm f/1.4 standard lens. For many this is a portrait lens on cropped sensor bodies, with an equivalent focal length of 80mm.

The picture on the right is unprocessed, straight from the camera at the lens’s sweet spot of f/8. The one on the left is after removing the chromatic aberration using the sliders in Lightroom. Even in these small pictures the amount of chromatic aberration is shocking – these enlarged snaps would make for a 30″ x 20″ print. (The small scale difference results from correcting converging verticals in Photoshop CS2).

Given the superb quality of the sensors in Canon’s DSLRs, isn’t it about time that some more attention was paid to fixing dated lens designs like the fixed focal length 50mm one? This sort of thing has been properly designed by any number of manufacturers decades ago and there really is no excuse for such poor optical engineering in a medium priced fixed focal length lens who many, suspicious of the bulk and poor optics in most zooms, still regard as their ‘standard’ lens. Especially old duffers like me who toured the world with a 50mm or 35mm on our cameras, because that’s all we could afford.

Now a glance at any news source will confirm that there are more complaining historians in the world than people with fix-it ideas. The fix here could not be simpler, or more lucrative for all concerned. Do a Panasonic. License Leica’s fabulous designs, Canon, forget about corporate pride, and make sure the final product is emblazoned with the Leica name. Use your mass manufacturing genius to drive the price down and I will be the first to have a fully automated 50mm f/2 Summicron-R Leica lens (made by Canon) on my wonderful 5D – the best 50mm lens ever made. Heck, if I’m feeling spendy I’ll even consider springing for the 50mm Summilux-R with its f/1.4 maximum speed – the second greatest 50mm lens ever made. And while Leica, 40 years on, still cannot manage to add autofocus to its SLR lenses, for Canon that would, of course, be de rigeur.

And while you are at it, Canon, feel free to replace your underwhelming 20mm f/2.8 (which I know and dislike) with Leica’s superb 19mm f/2.8 Elmarit-R, or even with the older 21mm f/4 Super Angulon-R which I knew and loved for many years. Leica and Schneider conspired on that design – can life get any better than that?


A big enlargement to make things yet clearer – color fringes before correction

A bargain and a classic

Canon 5D

The first classic of the digital age

The Canon 5D was the first camera to bring semi-affordable full frame sensors to digital photographers and, I believe, will go down as one of the great classics of the early digital photography age, much as, say, medium format was defined by the Rolleiflex and 35mm film by the rangefinder Leica. The leap in image quality it offered from 35mm and the ability to regularly match medium format film for definition and detail with none of the pain of operation make it the greatest camera design of its time.

The new 5D Mark II is slated to arrive in the US around December and yet there is already a slew of lightly used 5D Mark I models for sale on the web. Maybe it’s the economy, but I would think the price will soften further once Mark II generates some serious upgrade volume.

Check the eBay and you will see that completed auctions average about $1,300 for a mint condition lightly used body.

But I want the 21+ megapixel sensor in the new 5D Mark II, I hear you say, which begs the question why?

Do you propose making prints larger than 24″ x 30″? Do you want to use the movie mode? Is cleaning the dust off the sensor a real pain? Well, if you answered Yes to these, you may need the Mark II. No one else does.


Two classics – Canon 5D and Leica M3