Showing posts with label lens. Show all posts
Showing posts with label lens. Show all posts

Tuesday, May 3, 2011

Fun with Macro

A friend of mine has given me his Canon 40D and f/2.8 Macro lens to play with while he is away touring Australia. This morning - before the thunder claps and rain arrived - it was sunny and worthy of going outside with a camera. With this golden opportunity I decided first to take a few shots with the dedicated macro lens and then take similar shots with the Nikon with the screw-on macro adapter lens I had bought (new) from Ebay.
Here are the first two shots of a tiny grasshopper I spotted on one of the early Chrysanthemums. The head of the flower is only two centimetres across which will give you an idea of the magnification/closeness of me to the creature and petals. First the Canon 40D
 and now the Nikon D90
The depth of field is actually better with the dedicated macro lens on the Canon but I am really amazed at how well the sub $50 adapter behaves. The adapter is in two halves and when I unscrew the wide angle lens I can get up really close - to about 15cm from my subject.
Here are a couple more photos for comparison - the ones taken with the camera were when the light was a bit brighter - the thunder had already started rumbling by the time I took the Nikon outside. The loud bangs and the torrential rain came as soon as I moved indoors! We have had 29 mm of rain since it started ten minutes ago!
First the Canon
The colours are true in this picture from the Canon. The Nikon has tended to pinks.
The colours may need adjusting but see how much closer I can get once I take off that wide extension? Mind you, the depth of field is really really narrow! This flower is only tiny - about 1.5cm across. Because of the fading light I moved the plant outside.
All my photos are taken in full manual (with a few trial runs to get the settings correct!) The pre-sets did not seem to suit either the macro lens on the Canon nor the supplementary lenses on the Nikon. Focus is on manual too.
I enjoy playing with cameras (you would never know it, would you?) so being given permission to use someone else's camera and expensive lens is like going to heaven!
Just to finish, here are two more shots I want to share with you.

Both these flowers are small - the partly open Chrysanthemum is only 2cm at the most. It wasn't until I peered through the camera lens that I could see there were ants crawling around inside it.
If you click on any of these photos, they should open into a larger image, to return to this blog to finish reading or look at other pictures, click the "back" button.
Apologies for not writing in my blog for a while. I have not had good Internet connection due to switching ISPs but hopefully all that is behind me!
AJ

Tuesday, February 8, 2011

New lens from Ebay seller

I have just received what I consider to be a "gift". I am an Ebay addict! I have to make an effort to stay away from Ebay because I find it so much fun bidding and winning or purchasing something I feel I cannot do without. I have bought all sorts of things, a hose for the swimming pool cleaner unit, bags for the vacuum cleaner, food saver storage bags - and all sorts of electronic and photographic gadgets!
My latest purchase was a last minute decision to bid on a wide angle lens that had only 13 minutes to go before the bidding was closed. I can't remember what limit I set for my bid but I know I was surprised that it was accepted and that I was the "winning bidder" For the princely sum of $27.50 (Aust) I actually became the proud owner of this.
My new lens is .45mm macro/wide angle that screws onto my 18-55mm Nikon lens.
I haven't really tried any close up photography other than play with the wrapping that was around the parcel so I will show what it is capable of another day. But I did try a couple of wide angle shots - the reason I wanted this was so that I could get more people in a shot or take more of a room when the camera was used indoors.
This was my first attempt at indoor wide with this lens. You will see some huge barrel distortion but I will then show you how that can be corrected.

To be honest I was blown away with just how much I was able to get in my shot. There is a black vignette which means that the lens behind (the 18-55mm) is seeing the outer rim of the lens. I shall have to be aware of that and not push the lens that wide.
In Photoshop this barrel distortion is corrected in Filter>Distort>Lens Correction and this is how much I corrected the barrelling.
The filter allows the image to be re-scaled to remove the distorted edges - but that is stretching the picture. I prefer to accept the correction and then crop the image. To be left with this . . .
 If I had taken this same angle of my home with the 18-55mm lens I would only have got half the bookshelf - to this side of the two white backed Encyclopedia in the middle shelf - and all the opening through to the dining room.
So I am going to have some fun with this extension!
AJ