Well its been quite a while since I had chance to post any photos, or even work on them for that matter. What with work and preparing the artwork for the Kantref CD all my time seems to disappear. Anyway today is a lazy day off work, we were out gigging last night and I didn’t get home until after four in the morning, and took the opportunity to sneak out in the garden and take some shots. So here is my favorite from this morning.
Ok so I thought I would go out into the back garden and play around with the extension tubes for a bit. So I happily snapped away for a bit and then retreated within the house to have a look at the results.
Well once imported into lightroom it was apparent that they were quite blurry or rather soft. Why? Well in some cases the speed just was not fast enough, and in others the aperture was to wide. With the extension tubes on (only the 16mm in this case), the depth of field is very narrow so a small aperture is needed, and given that shallow depth of field every tiny hand movement can throw the focus off, therefore a fairly high speed is needed.
Therefore I headed back outside to take the same shots but with the camera set to manual with an f stop between 16-20, and speeds between 1/125 and 1/250, letting an automatic ISO of between 400-3200 compensate for the small aperture high speed combination.
The results – success – below is a shot of the empty seed head of some grass.
Well I was browsing amazon during my afternoon break the other day and I saw a Pentacon 2.8 29mm M42 mount lens for sale. Well it was a ridiculously low price so I thought I may as well have it. I had front and rear caps and a hoya skylight, well you really could not go wrong for the price. At 29mm its very nearly a 45mm on a APS-C sensor, so its very close to the field of vision of the human eye.
So how does it perform? Well not bad, I’m not blown away, but I didn’t expect to be for the price, and I have only walked around the back garden with it as yet. I am looking forward to taking some shots of architecture with it though. So here are some shots with it attached to the front of the a6000. The first is straight on the camera. I am not sure I like the bokeh that is being produced, I guess I will have to wait until I use the lens with some stronger light sources behind.
The second is with both 16mm and 10mm extension tubes as well. I quite like the way the lens has rendered the background in this picture.
Well last week I thought I would buy myself some cheap macro extension tubes from amazon, to get myself that little bit closer.
I have some macro filters, but have used them rarely and with little success. The new extension tubes have pass through contacts, so they record all info to exif, I get to set fstop, and I get autofocus if required. They are plastic, but I don’t aim to treat them that badly, and to buy tubes with metal mounts would have nearly doubled the price.
So how do they perform. The shots below were taken at 26mm, that being the lowest zoom where I could use both tubes, and the shots were performed handheld. The macro shots are not that steady and I will need to use a tripod or be in bright light. I lost between 2-3 stops of light, however this increases with the need to stop the aperture down to gain more depth of field, as this is very narrow with the lens so close to the subject and the aperture open.
So here are two shots without and with the tubes.
So now I have just got to find some time to get out and take some pictures.