Category Archives: Hardware

Stuff

Sigma DP1 – update

Finally, someone gets it.

I wrote hopefully about Sigma’s upcoming fixed focal length digital point-and-shoot here.

Well, Sigma has now released the camera and, guess what?

Yes, that’s an accessory shoe complete with a Sigma optical viewfinder on top. Oh! joy, oh! bliss, an optical viewfinder makes all that silly squinting at the screen and holding the camera at arm’s length unnecessary. Someone at Sigma must actually have used this camera before releasing it.

Now the lens remains at a modest f/4, but the fabulous Foveon three layer sensor will go a long way to keeping noise low (it uses relatively large sensor elements – a good thing, just like with Canon’s 5D), so I’m hoping the high ISO performance of this little gem will not be a compromised as in my Panasonic Lumix LX1 which I had to submit to the ignominy of a glued-on finder – click on ‘Leica DP’ in the left hand column for more. At 8 ozs in weight, this is a pretty solid sounding package. The fixed focal length lens? A dream for street snappers – it’s like a 25mm wide angle (assuming a 1.5x APS sensor factor) on a 35mm full frame camera. But Sigma, please, take a look at Leica’s hoods for their wide angles and do a bit of design ‘borrowing’ – it’s OK, Leica won’t sue you, they are broke….

It will be interesting to read the reviews – I am especially interested in the quality of the lens and praying that shutter lag is in Leica rangefinder territory rather than in the miserable world of point-and-shoots from everyone else. If those two measure up well, the Panasonic LX1 may find itself moving on….

One thing which has so changed with all these new camera makers is that loyalty to any one brand really makes no sense and the next great innovation is more likely than not to come from someone else.

High contrast scenes

Underexpose then adjust.

After working with a few digital sensors – from cheap and nasty ones in point-and-shoots through the best on the market, the one in the Canon 5D, the thing they have in common is that highlights burn out very easily and are mostly impossible to fully recover in the displayed or printed image.

Case in point. This snap of the first sign of spring here in central California was originally exposed for the shadows, meaning about 1/400th @ f/4, ISO 250. That’s because I automatically tend to meter for the shadows, and that approach with a subject like this is all wrong. Recalling this, I metered on the sky instead and retook the snap, which resulted in some three stops less exposure – 1/3000 @ f/4.


First signs of spring. Canon 5D, 50mm lens

The original is dark and muddy, so much so that one’s first inclination on importing it into Aperture is to delete the image. But wait. As this was exposed in RAW format, we can do a lot of image manipulation without hurting quality, aided by that awesome, grain free sensor in the 5D. A simple (and substantial) tweak of the Shadows slider in the image HUD in Aperture brings up the shadows and cherry trees nicely, while preserving the tone of the sky. By contrast, the version exposed for the shadows has highlights so blown out that it’s past saving.

Time for a Canon 5D upgrade

Canon releases the 10 fps EOS -1D Mark 111.

Canon’s announcement of a new 1D Mark III, a 1.3x cropped sensor professional grade camera begs the question when the 5D Mk II will become available.

There’s not a lot wrong with the 5D. What the camera does need is dust removal for the sensor (for whatever reason, the 5D seems especially prone to attracting dust to its sensor) and an LCD screen that can actually be read outdoors. The 5D does not need a larger screen or one with more definition. Rather, it needs a legible screen. And you can forget live preview (something Canon added to the Mark III, allowing screen ‘chimping’ before the picture is taken – pros need this feature? Really?). Just make the bloody thing useable outdoors.

Still, with the 5D’s price as firm as it is – probably the result of robust demand and no full frame competition at this price – I’m not holding my breath for an upgrade any time soon. That still leaves us with the best full frame digital camera (the only one, in fact) available at an (almost) reasonable price.

Cheap and good

You don’t have to pay ridiculous Leica prices for Leica quality.

All the talk in yesterday’s column about Canon’s superb 85mm f/1.8 lens got me to thinking about how lens technologies have changed in the fifty or so years since the Canon was first designed – good designs do not die!

Multicoating was added maybe twenty years ago, brass gave way to alloys and then machined focusing helixes gave way to nylon gears and miniscule stepper motors in the lens mount. Materials got lighter and cheap aspherical surfaces (resulting from casting rather than polishing) became the norm is more specialized lenses. Exotic high diffraction glasses of yesteryear became commonplace.

So how is the user experience when comparing what I think is the finest portrait lenses ever made, the 90mm Leica Apo-Summicron Aspherical with the much less costly Canon at not much more than one eighth of the cost!

You would think the handling experience of the Leica optic on an M body would blow anything out of the water, and you would be close. The compact lines and very short throw of the focus collar on the Apo make for a sweet handling lens. All Leica Ms handle the 90mm focal length well when it comes to viewfinding, the result being that the M with the Apo is a sweet package.

Now the Canon is light for its bulk which surfaces the old prejudice that it cannot be durable. Time will tell. A surprising benefit of this bulk is that the camera and lens are very comfortable to hold, especially when oriented vertically which is the norm for most portrait pictures. Hand held the Canon has it all over the Leica in this orientation. Add the vertical grip and things probably improve further.

Then it comes to focusing and here, again, the conclusion is surprising. Nothing beats a Leica M3 rangefinder for manual focusing in the poor light of a studio environment. Nothing except for the 85mm Canon on a 5D with focusing on the central rectangle only. The old trick of focusing on the eyes then quickly recomposing was simple enough with the M3. With the 5D it’s a dream. Camera up, part depress the shutter button, recompose, click. Takes about a half second once you get into it. And it’s so dead right every time you begin to wonder how you lived without it. Depth of field is a scarcity in the portrait studio so focusing errors are cruelly revealed. Especially when you like to make 18” x 24” prints like I do.

So the new world of electronics and micromotors and LEDs and contrast sensors and on and on really has left the old world of mechanical-everything behind. Charming as that world seems, it no longer offers the best tool for the job.