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There are two types of enlarger: condenser and diffuser.
A condenser enlarger has a light source which is shone through two condensing lenses before passing through the negative, and the focusing lens.
A diffuser enlarger is more basic and consists of a box with a hole in one of the sides. the box is completely open on the bottom so light can hit the entire ground glass on the back of the camera. A light is shone into the hole, bounces around the diffuser and thus provides an even level of illumination onto the ground glass before passing through the negative and the focusing lens.
My plan was to build a diffuser box out of white foam core as it is quite reflective, but also pretty diffuse, so the light should get spread out quite well. I measured my box to cover the ground glass on the back of the camera.
A simple test shining a torch into the hole showed that I needed to light tight the box a lot, but also that an even (ish) light could be focused onto the floor.
Mine diffuser for canon macro flash MT-24EX represent combinacion of diffuser's made by @Dalantech (www.flickr.com/photos/dalantech/), @SteB1 (www.flickr.com/photos/9578475@N02/) and @OrionMystery (www.flickr.com/photos/orionmystery/).
I used JJC-FC-26U Flash Diffuser + Gary Fong Puffer (hot glued them together), vellum paper - bubble wrap "sandwich" and plastic holder (cut from the 0,5l Coca Cola bottle).
Last year, I had the chance to work with the Beach Tourism Monitoring Team (BTMT) of the Department of Interior and Local Government (DILG). They are one of those guys responsible for the rehabilitation of Boracay Island. On this day, we went there to celebrate the anniversary of its rehab and to monitor its improvement and status. I was able to borrow a Digital SLR for that trip and having limited knowledge and experience with it, I opted for the easiest way for me; put it on manual settings just like how I would shoot with my Film SLR. :p I will be sharing some of my favorite shots and here is one of them.
mk1 beauty dish - foil lining and shallow cone reflector.
mk1a beauty dish foil lining and deep cone reflector
mk2 beauty dish white painted lining and semi reflective shallow cone.
Normal diffuser- my coke can diffuser with 2 layers of diffusion gel over the front.
Objective was to get a diffuser which gave slightly more shadow than my normal diffuser but avoided the harsh small glare seen in the bare flash. I wanted this mainly for flower shots. Looks like beauty dish mk2 should be ok.
Will post a shot of the mk2 diffuser later
This is not my picture. Is is an edit for Nellie Vin's. Working on colors.
www.flickr.com/groups/nellievinfineart/discuss/7215760539...
Inexpensive diffuser. Made from an 8.5 x 11 piece of cover stock (67 lb white paper). Two cuts allow me to wrap the bottom of the card around the SB800 flash head and secure it with rubber bands. I can bend the paper to catch more of the light if needed.
This acts as a large area light source so the shadows it produces are softer. In Landscape orientation you get shadows below the subject, just like the SB800 with the white pop-up card, but softer. In Portrait orientation the shadows are to one side.
The card directs the light forward, not like plastic diffusers which send the light in all directions. If you don't bend the card to catch most of the light you can also have some bounce light from the ceiling (if it's low enough) which will help moderate shadows.
Off camera flash triggered by Godox X-T1 trigger. Neewer 850II speedlight on a light stand 45 degrees to the right of subject just outside of the frame aimed slightly downwards. No gel used. Umbrella diffuser used. No need to engage ND filter - slower shutter speed used.
1) Flash on with no diffuser
2) Flash on with diffuser
3) Plastic container that had glaze/icing for Pillsbury cinnamon breakfast pastries.
4) Example of placement.
Photo Specs (Both Photos):
~ Focal Len = 70mm
~ Shutter = 1/60 Sec
~ f-stop = 9
~ ISO = 200
~ Expos Comp = 0 EV
~ Flash Mode = TTL
~ Flash Comp = 0 EV
My newest DIY macro flash diffuser: snootfusser. Been using it since June 13, 2008. Some images taken with this DIY diffuser:
www.flickr.com/photos/orionmystery/2579203929/
www.flickr.com/photos/orionmystery/2582857237/
www.flickr.com/photos/orionmystery/2592591703/
Old diffuser here: www.flickr.com/photos/orionmystery/1456815382/in/set-7215...
My macro rig, then and now: orionmystery.blogspot.com/2009/03/my-macro-rig-then-and-n...
** October 2010: This rig is very outdated but remains to show the progression of my setups through my Camera Gear set. You can view my most current and often-used setup here.**
Flash on, next picture is flash off.
Flash diffuser mounted (with tape, for now...I spent a long time making an elaborate wire support, and it didn't work out. Oh well.) Looks rough, works great. I actually have to diffuse it further with paper for many subjects, it is so bright.
Can also see my rig with the kit lens (18-55) mounted in reverse in front of my 60mm macro with a 62-52mm step-down ring and a 52mm male-male reversing ring. I have to hold the aperture on the front lens open manually; ten staples happen to be the perfect size to do so (older SLR lenses had a ring, which made it much easier).
It's a crappy shot, just uploaded for the tech aspect. Sorry for the poor quality, taken with old point-and-shoot.
This is a very simple, but very effective diffuser I have used for a most of the images taken with the 100mm macro lens you see on my Photostream this year. I was intending to write it up but haven't got round to it. These photos describe it.
My dad made a pretty cool diffuser for my aunt, the wedding photographer.
Create a diffuser by cutting out a rectangle from a sheet of opaque white plastic about 6 or 8 inches long and the width of your flash.
Attatch velcro to the bottom edge of the diffuser. Wrap velcro around the end of the flash. Point the flash up towards the ceiling and attach the diffuser to the back of the flash, away from the subject.
When taking a vertical shot, twist the flash around so it faces the ceiling again. Remove the diffuser and reattach it on the side of the flash so it faces the subject again.
See discussion of this in the technique group.
This is a diffuser for placing between a gas hob and saucepan. It both spreads the heat more evenly and reduces the amount of heat that gets through to the saucepan base, allowing for very slow cooking. Over eight years of use it has acquired patterning from corrosion and burnt-on spillages.
Another diffuser idea, plastic bottle :) Cut the hole at the end, slide diffuser all the the way in for maximum flash power, slide the sleeve up for more diffusion.
Made of thin paper with a cardboard frame. Attached to the body with a flat rubber band, standing 10 cm far from the popup flash.
Notice the soft shadows on the result, especially behind the metal object on the right side. The popup flash was the only light source here.
I met this fellow in Millenium Park. When I saw him he looked as though maybe he was going to assault me, then I realized that he was afraid of the same thing from me.
We exchanged greetings and he asked what I was taking pictures of. I, in turn, asked what he was doing. I got the better part of that exchange, I suppose.
He told me that he had converted his phone into a Geiger counter. I asked if he had detected any radiation in the area. He told me that he was "diffusing radio stations," and went into some detail about which frequencies. I asked him to what purpose. He replied that he was trying to deter the aliens that were trying to take away winter. The climate is going to be much milder in fifty years, he stated. He also claimed that we were all just simulations.
I told him that I had never met anyone quite like him. I thanked him, and asked if I could take a picture of his simulated appearance. He said that he did not mind, so I took this, and bid him a good day.
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