DIY: 400D Flash Deflector

30 March 2008    7 Comments

To complement my new camera, I desperately wanted a new flash, such as the 440EX or 530EX Speedlites from Canon. Unfortunately, their price tags are very prohibitive, with the latter getting up to AUD$700! The inbuilt/popup flash on the EOS 400D is ‘okay’, I guess, in the same way the flash on any point and shoot (P&S) camera is ‘okay’. I should point out that there is now the trend that certain non-SLR’s cameras having a Hot Shoe mount, meaning a more expensive and swivelable flash, eliminating the direct flash problem found in the majority of P&S cameras. I’m talking about flashes built into the camera, be it popup or fixed.

 

flashdiagram copy

 

The main problem with most P&S cameras that utilise a flash is that the subject becomes over exposed or there is excessive specular highlights because of the direct flash. A diffuser would help, but indirect light by bouncing it off the ceiling is often the best approach. Out of sheet styrene (or cardboard like my prototype was), I’ve created a Flash Deflector for my 400D. It simple slots into the hotshoe mount, and redirects the light from the flash to the ceiling, lighting the subject up (albeit a reduced amount) but not blasting it with direct light.

Step 1.

My prototype was created using white card (the inside of a box of prescription painkillers), so it is doable using household items (and thus free) – just make sure its a thickish card, otherwise it won’t reflect all the light.

Cut out the styrene or card into the various pieces needed. For 1mm styrene, you need four pieces in total – the main deflector, the holding bar, and two more to slot into the hotshoe mount. For card, you can get away with one piece folded over itself.

Section Shape
Hotshoe Mount Piece
(bit that slides into the HotShoe Mount)
parta
Square
Spacer
(In between HotShoe Mount Piece and Bracket)
partb
Rectangle
Bracket
(the part Deflector slides into)
partc
Rectangle with slot
Deflector partd
Rectangle with sticky-outy-bit (scientific term there folks)

The ‘bracket’ bit has a cut/slot in it the same size as the ‘sticky-outy-bit’ of the Deflector. This allows you to slide the main bracket piece into the camera’s hot shoe mount first, then slot in the deflector. Why? It means its overall thinner than what it’d have to be if you glued it in, and you can fold down the Flash Deflector into a bag so it doesn’t get broken.

Step 2.

Glue the Hotshoe Mount, Spacer, and Bracket together – the Spacer goes in the middle of the Hotshoe Mount Piece and at the end without the slot of the Bracket.

I’d recommend a strong adhesive that is heat resistant such as super glue. Just be careful to make sure everything is dry BEFORE slotting it into your camera – you don’t want it permanently mounted for when you can eventually afford the better flashes!

Step 3.

Take photos, ’cause you’re done.

finished_product 400dWithDeflector

Results

noflash flash flashdeflector
No Flash
(ISO 400, 1/60 second shutter speed*)
With Flash
(ISO 100, 1/200)
With Flash +Deflector
(ISO 100, 1/200)

*Using the same shutter speed or/and ISO settings as the other photos resulted in a black image (too dark). All shot with a 50mm f/1.8 II Prime Lens

Click each image if you want to see each photo in its original size (albeit cropped, file size for the three is about 2.9mb, I think).

As you can easily see, No Flash is too dark; with the Flash, the camera had trouble focusing properly, the edges of the phone are white while the rest of the phone is very dark; and finally the Flash + Deflector lights the scene almost perfectly! In Photoshop Lightroom, the ‘Flash’ white balance setting is pretty much spot on for what the items look like in real life/well lit situations for the Flash + Deflector shot, whereas the Flash shot requires a lot more work (not just changing the white balance) to get the realistic colours.

I might take this further later on, and experiment with semi-transparent materials, straws, etc, but overall, I’m pretty darn happy for about 10 minutes work. I think if anything, I’ll change the deflector to a box so that more light is deflected forward, rather than backwards towards the photographer.


 

New Camera: Canon EOS 400D

17 March 2008    No Comments

400d_front_fdown_b.jpgThis week I decided to get myself a new camera, and to step up into the world of dSLR’s.

The problem with our existing camera (Powershot S3 IS) was that despite being a high-ish end Point and Shoot, it suffered from what nearly all P&S’s do….a noisy sensor. That is, a grainy appearance to the image, unless the lighting was absolutely perfect.

Since I enjoyed the S3 IS, I decided to stick with Canon. Well, that and Will offered me one of his Canon lenses :D

I ended up picking up

I know I could have waited for the 450D which has a few improvements, but I wasn’t all that interested in a $200->300 premium. I did consider Nikon’s D40x/60 and the 80 (mostly because of Long Zheng‘s choice), but the offer of a lens from Will was really all I needed to put Nikon into an unrecoverable spot!

I must point out, the day I bought the camera, I waited until my wife got home from her Uni classes so she could unbox it. Much to our disappointment, we discovered that the camera was used and than the 18-55mm lens wasn’t in the box, and the spare battery I’d asked for wasn’t even the right type! I didn’t sleep well that night, but we went down to CameraHouse the next day and they fixed it up. Phew.

A day or so later I went over to my mothers house to fix up her HTPC (well, to install Free*EPG), and discovered she had a 35mm film SLR, a very old model from Olympus – OM-1. Along with her camera, were two prime lenses (28mm f/2.8 and 50mm…f/1.8!) and a rather chunky 80-250mm f/4.5 lens. Being Olympus (or OM mount) lenses, they obviously aren’t compatible with my 400D….until it turns out one of the employees at CameraHouse had an adapter! It set me back $80, but thse three lenses are pretty cool, even if they don’t have auto-focus capability.

Next on the list is a 8gb Sandisk Extreme III CF card (has double the read/write speed of the Ultra II), and a hotshoe flash with E-TTL/E-TTL II… I just haven’t decided which flash yet – the cheapest Canon doesn’t swivel and they just get very expensive after that.