All Forum Comments
Good stuff, it shows what a bit of imagination can do.
Comment by johnriley posted on charming family photographs at 20/06/2014 - 18:07
Moved to Classified Ads.
Comment by johnriley posted on Wanted Pentax 645n or nii at 20/06/2014 - 09:52
There is a light loss with tubes, and you can check this by taking a meter reading with and without them. What many may not realise is that there's also a light loss with lenses that use helical focusing. The lens group is moved away from the camera body to focus closer and in effect the lens itself is a very short extension tube.
That's one reason that traditional lenses limit their magnification to about 1:10, so a 50mm lens focuses down to about 0.5 metres.
That's one reason that traditional lenses limit their magnification to about 1:10, so a 50mm lens focuses down to about 0.5 metres.
Comment by johnriley posted on First Tube Close-Ups at 20/06/2014 - 07:58
There is very limited DOF at close distances, so smaller apertures may be necessary. It would not be unusual to use f/22 or f/32. This needs to be coupled with very careful focusing.
I'm not quite understanding your question as to whether this is the expected magnification. Using a set up like this, what you get is the magnification you get, there's no deviation from that. So there's no sense of there being a situation where it isn't doing that.
I'm not quite understanding your question as to whether this is the expected magnification. Using a set up like this, what you get is the magnification you get, there's no deviation from that. So there's no sense of there being a situation where it isn't doing that.
Comment by johnriley posted on First Tube Close-Ups at 19/06/2014 - 23:56
The first Kodak box camera, preloaded with 100 exposures, used a circular format.
However, everything else since has been a rectangle within the image circle, OK with a handful of odd exceptions, so the general preference is clear. If we want circular format we can do that in Photoshop etc.
However, everything else since has been a rectangle within the image circle, OK with a handful of odd exceptions, so the general preference is clear. If we want circular format we can do that in Photoshop etc.
Comment by johnriley posted on Cropping photos - is there a right way? at 19/06/2014 - 14:13
Do you want to mount a lens in reverse on another lens, both having 52mm filter threads?
Comment by johnriley posted on WTB 52MM-52MM MALE THREAD RING at 19/06/2014 - 07:16
The picture as viewed in the viewfinder may or may not be the right shape for a subject, so cropping is an important tool. It does affect how we relate to an image.
For example, a square frame suggests balance and stability. We crop to make the final composition and don't stick to any one particular ratio. Even printing paper can be cut to the required shape.
On economical way to crop a print is to order the next size up and then trim accordingly.
For example, a square frame suggests balance and stability. We crop to make the final composition and don't stick to any one particular ratio. Even printing paper can be cut to the required shape.
On economical way to crop a print is to order the next size up and then trim accordingly.
Comment by johnriley posted on Cropping photos - is there a right way? at 17/06/2014 - 12:52
The photos are great, the location is full of inspiration. It's time we went back there I think.
Comment by johnriley posted on Beamish Museum. at 17/06/2014 - 09:10
