Couldn't find a review of this lens when i was considering it so thought i'll do one now. Just got it this morning btw
Name : Raynox DCR-250
Price : $45 Aud
Lens : 2 group/3 element optical glasses
Weight : 60g
Comes with : Universal lens adaptor for lens sizes 52-67mm, lens cap and case.
First of this is by no means something that would be able to match the quality of proper macro specific lenses out there. However if you're just thinking about playing around with Macro, its a pretty neat toy especially since it costs around $40 australian, i'm pretty sure you can get it for an even cheaper price somewhere.
The lens and adaptor
The lens screws onto the adaptor just like how you would screw on a filter to your lens
Handy box included for travelling or storing purposes
Attached to D80
The Raynox DCR-250 allows some extreme macro shots, it is light, well thought up and handy (fits most lenses and storage box is a sweet). But there are some limitations to it. As you can see from the D80 pic, installing the raynox 250 might prevent you from being able to attach your lens hood which might be an issue for some people. Also the size of the lens itself is pretty small so expect some vignetting(this can be cured by zooming out).
Most extreme case of vignetting
The image produced is actually decent considering the price of the lens. Some exaples are given below. Note: None of these pics were cropped in anyway. They're exactly how they look out of the camera. Used photobucket to resize.
remember to clean keyboard before posting pics next time >.<
This shows the level of magnification that the lens can achieve.
Note: this pic is to show the size of the flower, note the "hard to see arrow" on the bottom right flower.
This is the magnification of that flower with the lens. To get this magnification i actually had to get up to around 1cm away from the flower to get a proper focus.
I first got this lens thinking that i would be able to get some insect close ups with it. But the raynox 250 seriously has a very short depth of field. This along with the issues of the camera not being able to auto focus with the lens on and also the range needed to get good close up shots make it pretty much impossible. I would greatly recommend using a tripod when using this lens as any slight movement would throw the image out of focus due to the short depth of field. All in all however i am pretty happy with the quality of the lens itself. In the right hands it'll probably be able to provide some really high quality, interesting and clear macro shots.
Cheaper than most macro lenses/filters
Nice and high magnification
Easy to install and store
Fits most lenses
Can produce some high quality images
Very short depth of field
Confuses auto focus so manual focus needed
Tripod required to get really good shots
Almost impossible to get a good clear shot of a moving subject (depth of field problem again)
Lens has to practically touch the subject to get best magnification
Anyway that'll be all, just post any questions or comments. Hope you all find this useful.
This regards the DOF and sharpness issues. The performance of the Raynox depends heavily on the lens you use it on. So far i've found that the best images are with the 50mm f1.8 set at f22. Here are some samples without any cropping.
Here is a 100% crop of image 1