Thursday, March 31, 2011

March for the Alternative

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March for the Alternative Set on Flickr.

The March for the Alternative posed a problem regarding shooting; the ideal kit would have been my two Nikon D50 SLRs with a telephoto and a wideangle, but I was going to be walking all day, on top of which I've had trouble with my back recently, making me wary of lugging heavy kit for so long.

In the end, I settled for taking my Panasonic LX3 compact with a Fuji E900 for backup and telephoto shots. The wide end of the LX3 zoom is FOV 24mm, which pulls out foreground objects and pushes backgrounds into the distance, ideal for shooting in crowds. On top of that I underexposed backgrounds by a stop or so and used a pop of fill-flash to bring the foregrounds back. Early shots were taken with the flash on-camera, later ones I used a Cactus wireless trigger to get the flash off-camera, which looked much more natural.

Using a compact where I could compose using the rear screen worked out really well; in general I was getting closer because I could extend the camera to arm's length  while still seeing where I was shooting. I could also shoot from high or low viewpoints much more easily than with an SLR (though I found myself once again wishing the LX3 had a rotating screen like the Canon G series). Depth of field was amazing; at f4 I was getting sharp focus from 3ft to infinity, going up to 1.5ft to infinity at f8. Most of the time I shot in manual focus, focussing hyperfocally using the handy depth-of-field guide in the LX3's focus indicator.

Favourite shot of the day:

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Wednesday, September 01, 2010

Marching in Heels

I've made up a "Best of" set of my photos on Flickr from our ten months in Thessaloniki - set here, slideshow here. Be warned, it's still 180 shots!

Saturday, June 05, 2010

Welcome to Sunny Greece!

Welcome to Sunny Greece 04

Got caught out in a massive shower while out shopping this morning - luckily I had my cameras with me. Plus I ended up having a really nice chat with an American called Max from the US mission to Kosovo while sheltering under an awning outside Starbucks*. More on Flickr.

*It seems I have been living in Greece long enough to be mildly outraged at a café charging for water.

Sunday, March 07, 2010

Googled!


I just googled "Original Iron Man" and blow me if my Flickr shot of Classic Iron Man vs. Cybermen didn't show up in the thumbnails at the top of the search results! Here's the original from my Flickr site:

Leave It, Tony, It's Not Worth It...

"Leave It, Tony, It Isn't Worth It…"

Sunday, February 10, 2008

Dalek Corridor Set


Red Movie Dalek in corridor set

I've had several requests to do something on the card-construction corridor set I made for my Product Enterprises Micro-Daleks. Having a proper set just adds another dimension when photographing models or toys, both in terms of composition and lighting effects (see below).

You can download the nets for this model as a set of PDFs to print out - there are more details (and some basic instructions) further down this entry in the section marked "Assembly."



Although the set is just made of flat sections of card printed with black line drawings, it works surprisingly well under different lighting conditions.

I’d been trying to put together some sort of modular scale set for nearly a year, collecting bits of packaging and other materials that might be useful, but I never seemed to have the time for the sort of model building that would require extensive planning, assembly and painting. I wanted a quicker method to get started.


Plan view of the sections ("nets") used to make the corridor set. I built these in Adobe Illustrator.

I decided to see what could be done with paper construction. This was a quick option for me because I work almost every day with Adobe Illustrator, an application that's ideal for generating the "nets" (see above) needed to make 3D objects out of folded paper or card. Working in Illustrator, I could do a bit here and there in between my paid jobs; what's more, Illustrator can easily generate and duplicate complicated geometrical shapes, so I could add detail to the surfaces of the set at the drawing stage, without the need for additional work during construction.
I made nets for a corridor section and an angled joining section. Since I could print these out as many times as I liked, I could have as many sections as I was prepared to spend time building. I included the angled section for two reasons:
  1. By joining two corridor sections with an angled section, I got a more interesting set - effectively a curve around which lines of Daleks could emerge.
  2. Because of the angle, the inside wall of one straight corridor section would not be visible from the other straight section. Leaving out said inside wall cut down assembly time and gave me more flexibility in terms of camera angles and lighting.


The nets were broken down into sections small enough to fit on A4 sheets for printing out.


Printing

The difficult part of printing was finding a suitable card stock to print on. Really I wanted a heavyweight matt-surface printer card - 250-350gsm weight - which proved remarkably difficult to find. Heavyweight glossy photo paper is common, but the shiny surface would have caused too many problems with reflections when being photographed. I could get heavyweight inkjet/laser card on the Internet, but only in bulk, and I wanted to do some test construction before buying. In the end I managed to find some satin-surface 200gsm printer card in my local branch of Partners - a little lighter than I wanted, but good enough for a test.

I'd designed the nets so they could be divided into sections small enough to fit on to A4 sheets for printing. There were ten different sheets, some of which (such as end walls) had to be printed out more than once to make a complete corridor section.

The card would take laser or inkjet printing, and I decided to use my old laser printer for the trial run, as laser prints would not run on contact with the water-based Copydex rubber paste I intended to use.


View of the three different corridor set sections built so far. The sections were left free standing so they could be put together in different combinations.

Assembly

If you want to have a go yourself, the nets can be downloaded as PDFs from this page. The files come zipped, so you may need the free StuffIt Expander for Mac, PC or Unix from smithmicro.com. But be warned; so far I haven't had time to write proper assembly instructions, so there may well be a lot of guesswork involved!

I printed out the sections, scored along fold lines with a scalpel (the card was too thick to fold neatly otherwise) and cut out each section with a combination of scalpel (for precision work) and scissors (faster for the edges of flaps where accuracy is less important).

For the straight corridor sections I first glued the triangular flanges onto the walls. There are two types of flange; a free-standing double one (sheet 5 of the download) that appears three times on each corridor side wall, and a single one (sheet 6) that attaches to the ends of the side walls.
I then glued the walls, floors and ceilings together, forming a sort of tunnel, and added the end pieces last for rigidity. The angled joining section was done in a similar way; walls, floor & ceiling first, end pieces afterwards.

I cut hexagonal "skylights" out of the ceilings to let light in. In fact, the holes are so small that the effect is little more than cosmetic; in order to get a reasonable amount of light in through the holes, you'd need to put a lamp right over the set, and the light would show through the thin card of the ceiling. A simple way to avoid this would be to back all the sections with aluminium cooking foil before cutting out and gluing, but I only thought of this after I'd finished construction.

I also found the 200gsm card was a little too thin to make the set completely rigid; using Copydex rubber paste to glue the set together didn't help, as Copydex gives a good bond on card, but suffers from shrinkage, so there's been some slight cockling of the card. The floor of the set does not sit flat, and on several shots I've had to use micro-Daleks as weights to flatten it out!
This problem could probably be overcome by gluing the floor section to a piece of thick mounting card (or even thin wood or plastic) with Spraymount before assembly.


View of the three different corridor set sections assembled for shooting.
This is the arrangement used for most of the shots above.
You can see cockling caused by glue shrinkage in the end section nearest the camera

The Sections

I'd originally planned to glue all three sections together, but once I had them assembled, I realised they were best left separate, so I could combine them in different arrangments.


Section 1: closed corridor section
Note the triangular struts arrayed inside the side walls; these help add rigidity to the walls, as well as making the corridor look more interesting.

The closed corridor section was the first one I built; it's a hexagonal tunnel designed for end-on shots where both walls of the corridor are visible. Despite leaving small openings in the ceiling, for photographic purposes the only usable illumination enters through the ends.


Section 2: angled joining section.



The angled section was a pig to design; working out two angled cross-sections of a hexagonal prism was a tricky job for someone with my shaky grasp of geometry, and it took me three goes to work out all the angles and lengths of side, and even then, the version you see here is very slightly "off" - the outer walls are a bit too big and don't fit flush with the end sections. I also thought I'd designed the section to angle at 22.5º (so that eight of them would form a complete circle) but the final product has ended up... not. Ho hum.
Nevertheless, The thing fits together well enough for shooting purposes, and does the job it was meant for (see below).



The angled joining section is visible to the rear of this shot; putting a bend into the corridor not only makes the set look more interesting, but allows a wall of the far corridor section to be left open without the gap being visible.



Section 3: open-sided corridor section.
The missing wall allows for side-on camera angles, or for light to enter the corridor section if it's being used as a background. One end is closed with a "door" loosely held in place by tape.

The open-sided corridor section is the same as the first, just with one wall omitted. Because the thin card I'm using isn't terribly rigid, I taped lengths of semi-rigid floristry wire along the end walls and ceiling (see below). Backing these sections with rigid card before assembly would work better, but would make assembly more complicated.


Open-sided corridor section with end "door" opened.
The "door" at the end of this section is held in place with masking tape and can easily be removed.
Note the lengths of floristry wire needed to strengthen the end walls and ceiling.

Camera Angles and Lighting

There were two reasons for leaving this section open; first, it allows for side-on camera angles, and second, it allows light to enter the corridor section if it's being used as a background (see picture below).
I also added an end "door" to this corridor section. This is fixed loosely with tape, and can be removed (see below) to allow a wider range of camera angles.



Above left: open-sided corridor section with end "door" opened, allowing the camera to be positioned in a way that would be impossible in a closed section. Above right: the photo that resulted.

In the pictures above, you can see how the open side and back of the open corridor section allows camera positions that would be impossible in a closed section.


Example showing how the open-sided corridor section helps with lighting. The open section lets daylight in to the background of this shot.


The open corridor section is also helpful regarding lighting; the shot above was taken in daylight, which entered the set through the end of the closed corridor section (behind the camera) and through the open wall of the open corridor section at the far end (hidden by the turn in the corridor), ensuring that illumination was more or less even all along the set. If the background corridor section had been closed, the far end of the corridor would have been too dark to make out clearly.



Using a desk lamp as a light source. Important: only ever use a lamp fitted with low-energy or fluorescent bulbs! Incandescent bulbs placed this close to a paper model would pose a serious fire risk!

If you're feeling more adventurous, you can try artificial light sources. An important safety warning though; only ever use low-energy bulbs or fluorescent tubes when working close to paper models. NEVER use incandescent bulbs, the heat they give off poses a serious fire risk!

I've tried both battery-powered LCD lamps and (shown above) a neat desk lamp from Ikea that takes low-energy fluorescent tubes. These have the advantage of being cool (therefore safe to put near paper!) and also give a strong but diffuse illumination that looks great when it bounces off the corridor walls (see below)

This is what the lighting looks like from inside the set. Ridley Scott eat your heart out.

To see the finished results, check out my Dalek photos on Flickr.

Sunday, November 04, 2007

Better Is Not Always Best...



The original shot; 916 views, 59 faves and 20 comments in a week on Flickr

Interesting quandary this week; last Friday I loaded the above shot on to Flickr. It was just a quick joke thing, shot on my Canon compact, up it loaded and then on to other stuff. Despite a busy week it did niggle the anal part of my brain that I'd not quite got it right though; the highlights on the figures are badly blown.
After a day or so I got round to re-shooting on my SLR (whose bigger sensor copes better with contrast) and then it took the rest of the week before I got round to getting the shot off the camera. Normally, when I make a technical improvement, I'd just replace a shot on Flickr, but in the meantime the original shot had garnered 916 views (2nd highest ever on my stream), 59 faves (highest ever on my stream) and 20 comments (2nd highest ever on my stream).




Revised version with better contrast control

I decided that, since the original had been so popular, and the new one had slightly different framing, it would be "cheating" to just replace it; besides, just because I prefer the low-contrast version doesn't mean my "readership" of 59 "favers" would think so. In the end I've uploaded both to my Flickr stream and linked the two so that people can see the differences.

Monday, October 08, 2007

E550 Extension Lenses

E550 Cybermen

5" Cyberman figures photographed with Finepix E550 and Fujifilm 0.76x Wide Conversion Lens WL-FXE01

Back in the summer I picked up an extension lens set for my Fuji Finepix E550; this comprises the Fujifilm Adaptor Ring AR-FXE02, that bayonets around the E550's lens, and has a 43mm screw thread that allows the
Fujifilm 0.76x Wide Conversion Lens WL-FXE01 or Fujifilm 1.92x Tele Conversion Lens TL-FXE01 to be fitted. 43mm filters can also be attached to the adaptor.

Left: urban landscape taken with the Fujifilm 0.76x Wide Conversion Lens WL-FXE01

0.76x Wide Conversion Lens WL-FXE01
This adaptor converts the wide end of the E550's zoom from 32.5mm to 24mm*; results are sharp, with a minimum of barrel distortion (curved lines at the edge of the frame). Despite the wide angle and the extra bits of glass placed in front of the lens, the adaptor isn't prone to lens flare. Vignetting wasn't noticeable on the shots I took.

*Field of view equivalent to 35mm camera lenses

The size of the wide lens does mean that it fouls the E550's viewfinder and built in flash.

As you'd expect with such a wide angle, depth of field is formidable at maximum aperture (f8), though all small-sensor cameras like the E550 have extended depth of field relative to 35mm or digital SLRs anyway.
From my limited tests, focus speed and accuracy seem unaffected.
Close-focussing is even closer with the adaptor attached, though the greater angle of view means that objects may not appear much larger in the frame. However, the angular distortion and receding perspective of the wide-angle is useful for lending an impression of large scale to small objects; the Cybermen toys photographed at top were only 5" high, but appear to be life sized; the front figure was touching the front element of the adaptor.



Above: superior depth of field: in this shot, the
Fujifilm 0.76x Wide Conversion Lens WL-FXE01 allows complete front to back sharpness at f8

Although Fuji warns against this, I did find that the wide adaptor produced reasonable results at all focal lengths, though the telephoto end is shortened considerably. While it's better to remove the adaptor for non-wide angle work, I'd not hesitate to use the zoom for a grab shot if time didn't allow for the removal of the adaptor.



Above: grab shots taken with the wide(left) and tele (right) adaptors; focussing was not inhibited by either adaptor, an important factor for a camera as responsive as the E550.



Above left: excellent sharpness and contrast from the E550 with tele adaptor.
Above Right: don't zoom out! The vignetting visible as dark patches at the corners of the frame was not noticable in the camera LCD screen at the time.

1.92x Tele Conversion Lens TL-FXE01

This adaptor extends the telephoto end of the zoom from an effective 125mm to 250mm. Results were good; images were sharp, and there was no noticeable vignetting or image distortion. Focussing was not slowed.
The TL-FXE01 tele adaptor has to be used at the tele end of the zoom; zooming out only a little results in severe vignetting at the corners (see above, right), which is not always noticeable on the LCD screen when shooting.
As with all telephoto lenses, fast shutter speeds must be used to ensure a shake-free image. Because the aperture range of the E550 is limited at the telephoto end (f5.6-8 only), this adaptor would be of limited use to anyone trying to hand-hold the camera in low-light situations.



Above: though there's apparent flare at the bottom right of the frame, I couldn't repeat the effect by shooting into the light

Flare was generally excellently controlled, with one very small anomaly: when shooting a sharpness test with the sun at about 60% to the lens, an apparent flare spot appeared in the bottom right corner (small orange patch). Following this, I took a series of shots into the sun, but couldn't repeat the effect. If this was flare, then it only occurs when the light source is at a very specific angle; in general, the adaptor produced flare-free images under conditions that would have taxed my Nikon telephoto SLR lenses.



Above: The tele adaptor coped very well with shooting into the light; no flare is evident on all of the test shots bar one.

I bought the lenses as a kit from Amazon.co.uk. This cost me less for the adaptor and two lenses than some places charged for a single lens. The kit didn't show up in a general search, but required the specific part number B000GQ5EHM to be entered into the search engine. It's listed as an accessory for the later Finepix E900, but fits the E550 perfectly; in fact the packaging on the individual items listed them as for the E550.

The lenses do what they advertise, without degrading the image quality or performance of the E550. I don't use mine all the time, but on business trips when it's not practical to carry my SLR, they're a great way of extending the range of my "carry anywhere" camera.