Category Archives: Technology

Zacuto Z-Finder

After a year of using the Hoodman HoodLoupe as my viewfinder on the Canon 5D Mark II I was able to scrape together some cash to purchase what many people consider to be the gold standard for DSLR viewfinders: the Zacuto Z-Finder. Continuing my long tradition of ill-timed purchases, Zacuto released not one, but two new versions of the finder a couple of weeks after I purchased mine but I’m not bitter…

I’ve had the opportunity to use the finder in a number of settings. A majority of my work is shooting business videos and currently the 5D is my go to camera for b-roll. I’ve also used it to shoot live concert footage, which required me to be moving around a lot and working quickly to get critical focus on shot after shot.

I also used the finder to do a variety of outdoor shoots, both video and photography. When Live View arrived with my 40D I never really considered its value until I discovered the 5x magnification feature when doing sone landscape work. Ever since I’ve been a big fan of Live View as part of my composition process for certain types of images.

Here are a few notes you may find of value…

The newer finders have changed the mounting scheme, but my version affixes itself to the LCD cover glass with a strong adhesive.  They say it will pop off cleanly if needed.  (We’ll see about that.)  The result is that you get a piece of plastic that creates a little window shade over the LCD and creates a small “traffic problem” around the control buttons.  You can still get them, but not as easily as before.  I wear glasses (which we’ll talk about in a minute) and the mount bumps into my optics when I’m using the regular viewfinder.  Nothing serious, but you know its there.

As a myopic photographer and, getting up in age, I’ve been wearing progressive lenses for a few years now. My current prescription is apparently just outside the error bars of what Zacuto considers normal vision, so I had to order a set of extension plates — essentially spacers that stack on the finder body.  You can see them here:

The extension plates work as advertised, but they carry a small penalty that I need to develop a workaround for.  The plates attach via friction — they snap into the existing viewfinder body.   Whenever you design something to join together solely with friction there is a natural affinity to which joint will break first.  In my case, when I remove the viewfinder the extension plates stay with the camera and not the viewfinder (see below) and this, frankly, sucks.

So I’m going to end up either taping or gluing the extension plates to the viewfinder body so that they stay with it and not the camera because they simply get in the way when they stay attached to the camera.

Here is, as far as I’m concerned, a mandatory addition to what Zacuto provides with the viewfinder:

It’s just a short bit of elastic cording tied to the finder and a loop for the camera strap. But man, oh, man is it important.

I only had the viewfinder a few hours in the field when it took its first dive to the ground.  When traveling around on a tripod, especially when out in the field, I heave the whole camera/lens/tripod over my shoulder and invariably it will rotate unexpectedly and I will bump the viewfinder on the way up or down.

So I quickly rigged up a safety line, made from elastic cord, that keeps the errant viewfinder relatively attached to the camera.  I use OpTech camera straps, so it is very easy to attach/unattach the elastic when needed.

The photo to the right shows the safety system in practice.

I originally rigged this up because of my woes when walking through the woods with the rig, but I quickly discovered that when I am working with the camera on a shoot I may accidentally bump the viewfinder more than I think I should and this little 10 cent piece of elastic has probably saved the viewfinder from damage and has certainly prevented it from ending up in a river (yes I bumped it once while setting up the camera while standing in running water).

[Note: The Z-Finder comes with a lanyard / neck strap -- but I just can't work that way...  so it's not as if Zacuto hadn't thought of this problem entirely -- their solution just doesn't fit my work style.   I suspect they will produce something similar to what I'm using in the future and charge $25 for it.]

The elastic is also just long enough that I can stow the viewfinder next to the camera in my bag and keep everything attached to each other so it goes in and out of the bag easily (that’s the 5D at the bottom of the photo):

The new generation of the Zacuto finders have coatings that prevent or deter fogging.  I think this feature I will miss because I certainly have had my share of fogging situations and I haven’t even had a chance to use it in the colder months.  I’m hoping that Catcrap will help, but I’m not going to bet the farm on that.   (To be fair, my glasses fog up just as badly so I’m pretty much screwed either way..)

As to the performance, it works very well.  I’m able to use the viewfinder as a point of contact, greatly improving the camera stability for handheld shooting.   The eyepiece is very comfortable, even with glasses.   The rubber eyepiece attracts dust and dirt, so if you are in the field you’ll want to pay attention to what’s building up on it — again especially if you are mashing your eyeglasses against it.   Fortunately the eyepiece easily detaches and can be quickly washed/rinsed.

I have to admit that with the addition of this viewfinder I actually prefer using it over the optical viewfinder — for certain types of shooting.  The ability to have the histogram displayed live along with composition lines, 5x and 10x magnification, and other data is pretty cool — and they can be made to disappear with the push of a button.   As the resolution of the rear-panel displays inevitably increases I can see how electronic viewfinders may well rival the optical ones — particularly for the more contemplative shooting styles.

The Z-Finder is now part of my standard field kit and I’m looking forward to purchasing another mounting bracket for the 7D.  Much to my chagrin the Zacuto mounting plate and the Hoodman HoodLoupe are exactly the same size so the opportunity to “soft dock” the HoodLoupe on the Zacuto plate is lost.  Maybe I’ll rig some sort of  adapter — you can do anything with gaffer’s tape, right?

Here are a few more photos of the Zacuto Z-Finder and the Hoodman HoodLoupe for comparison:






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Earth Day and Your Printer

Somewhere around this time is Earth Day… maybe it’s today.   Frankly, for me, every day is Earth Day so I’m not all that juiced about designating a particular day for it — but it’s blatantly obvious that I’m not in the majority of how people think about and treat this planet, so calling attention to it is a good thing.

So here’s my Earth Day post…  These are my Epson 2200 printer cartridges.  I’ve had my printer for 8 years now and I’ve never tossed a printer cartridge and, as you can see, I’ve gone through a few.   I wasn’t sure what to do with them, but tossing them in the waste stream wasn’t going to be part of my printing workflow.

Starting this year I’m bringing 10 cartridges a month to Staples where they will help recycle the little devils.  Staples pays you $3 per cartridge, so that’s $30/month for me to purchase new inks.

If you print a lot, please find a way to recycle your consumables — whether it be through Staples or likely a dozen other ways.  Simply tossing them into the wastebasket isn’t helping anyone.

Oh, and if you want to go a step further, consider using GreenPix paper from Red River Paper.  This is a photographic paper made from recycled stock and works really well.  I’ve printed notecards on it for many years now and feel better that these items, which typically aren’t hung on walls, at least are on their second life through the consumer system — and might be on their way to a third.

You can do this and a hundred other reduce/reuse/recycle things in your life for whatever reasons float your boat.  Mine are in the background of the photograph above – my wife, my grandson, and the river they are paddling on.

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Lightroom Kung-Fu for Tone-mapped RAW Images

Last year I had the privilege of speaking at Baypath College about authenticity of photographic images, particularly in relation to nature / conservation photography.   Part of the talk was devoted to showing how any photograph is an interpretation of the photographer — the image has an intent: informational, documentary, pictorial, and equivalent  (the latter coined by Minor White).  The challenge for the photographer is to use composition and tonalities to express one of those intents.  The primary technical hurdle of the photographer is dealing with different dynamic ranges of the steps along the way to the viewer’s eye: nature, camera sensor/film, editing, and finally the print (or screen).   One of the more interesting tools that digital photography has made simpler to use is “high dynamic range” (HDR) photography, where one extends the dynamic range of the camera’s sensor by capturing multiple images at different exposures and then combining them into a single image.   Whether or not you do this at the capture side, there remains the problem of showing this image to the viewer – typically on media that has a much smaller dynamic range — so the photographer must “compress” this wider image into a smaller space.  This process is generally known as “tone mapping” –  you old-schoolers can think of it as “dodging and burning on steroids”.

While visiting the Savannah National Wildlife Refuge (outside of Savannah Georgia) last year I came upon a scene that I knew would work well with HDR photography, so I did some exposures with that intent. I also took a few standard exposures looking to maximize the dynamic range of my camera. The multiple-exposure nature of HDR photography today has an inherent weakness whenever there is motion in the image you wish to not record. In this case there was a slight breeze and the leaves on the trees were moving between frames enough to really destroy the feeling I was looking for. This left me with a carefully exposed single RAW image to work with:

I processed it with Lightroom in my typical fashion: lowered the exposure slightly to bring in the highlights, raised the black point to 27 to get the contrast, bumped up clarity and vibrance for midtone punch and this was the result:

OK, but not great. The “feel” of the road and the foliage isn’t there. Oh well…

One of the blogs I follow (and highly recommend) is the Digital Photography School, particularly the “Tips and Tutorials” RSS feed.  There is a constant flow of ideas there and a few weeks ago there was an article on creating a particular very stylized look to portraits using Lightroom.  The results, for me, enters that slippery space between photographic and painting and way outside the comfort zone of what I consider my style of photography.  But I understood what Lightroom was being coerced into doing for the artist.

The great thing about this technique is that it simply uses standard Lightroom development settings, but in an extreme way — creating portraits like the one to the right of my grandson. (Sorry Damien, I needed an example.)

Using Lightroom to push images to the edge like this has its pitfalls.  The nature of the changes means that you can create some nasty artifacts and color shifts that detract from the final image (you might note some pretty ugly halos along the right side of Damien’s head and sweatshirt).  But it certainly is easy enough to try once in a while on images that you think might work.

Here’s the essence of the technique: push recovery,  fill, clarity, and vibrance very high, bring black point up to restore contrast, adjust exposure as needed, and then lower saturation to bring things closer to reality.  The settings are highly dependent on the starting image so there’s really no way to make a good develop preset for this.  On the other hand it only takes 10 seconds to get the sliders into the approximate positions to assess the image.

The settings on the right are the ones I used to transform the RAW Savannah NWR file (the second image in this posting) to the (near) final form you see at the top of the post.  (That final image includes a Lightroom local adjustment to the road to increase lower brightness and increase contrast just a bit.)

What I realized is that this technique ramps up Lightroom’s normally subtle tone-mapping skills so that it can be used to create images that have that “HDR” feel to them by deeply compressing the dark and light tones closer to the midtones.  When you start with a well-exposed RAW image, and the content of that image cooperates, the results can be quite interesting.

I’ve been using a more subtle version of this technique in a number of the “power of water” images I’ve posted here recently.  The ability to tease out the subtle glows that I see when I’m actually there taking the image has been quite gratifying.

Yesterday I started wandering through my Lightroom catalog looking for other candidate images where this technique might work well. (I admit it: once you have new hammer, you start looking around for nails.) The Savannah NWR image was one of my first “victims”.  That I was able to produce a final image from a single RAW file that rivaled the multiple-exposure HDR image I created was inspiring.   This portrait of True West and a Maynard Christmas Parade photos show the technique’s results pretty well.   If you place your mouse cursor over the image it should show you the “traditional” interpretation of the images:

Lightroom develop settings for the True West photo: recovery 85, fill 67, black 36, clarity +85, vibrance +69, saturation -46.  For the fire truck: recovery 81, fill 80, black 48, clarity +20, vibrance +60, saturation -35.

Another set of images called out for this technique – my LRRS motorcycle racing images taken last spring and summer.  Once again this experience of shooting these racing machines has opened up another set of skills for me as a photographer.  To be able to take these straight documentary photographs and, with the right combination of exposure and tone-mapping, transform them into something that has a different emotional feel to it is great and I’m looking forward to sharing them with my racing friends.  Here’s an example of applying this technique to some race images (again, the mouseover trick works with this image too):

Lightroom settings: exposure -1/4 stop, recovery 64, fill 92, black 68, clarity +85, vibrance +50, saturation -17.

I liked it so much that I created a small gallery of LRRS images using this technique: [url]http://events.dmg-photography.com/2009-lrrs-reloaded[/url]

Only a fraction of the images will respond positively to this technique.  I’m sure if you purchase Photomatix or play with Photoshop all day, it is possible to produce similar and, likely, better images.  But the immediacy of doing this in Lightroom inside of 30 seconds and knowing if there’s likely to be a new great image buried inside that existing photograph is just too cool for words.  All done without changing the essential content of the images.  Art meets authenticity.  I love it.

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