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Shuttershock and Olympus 75-300

Since a couple of months I own the Olympus 75-300 III. And since day one, I wasn't happy with the results I got. 
All the pictures shot at +/- 300 mm where soft and looked like there was motion blur. How's that possible? I tried it at a 1/1000th of a second, but still the motion blur in my pictures. I regret that I ever sold my Pentax with the 55-300 for this awfull lens!
But... Most reviews of this lens are positive. Is my copy of this lens bad?
I then figured out by reading forums that it could be a phenomena called 'shuttershock'. It that case, the shock of the shutter causes enough movement so the image is blurred.
For example:

How to fix this?
My camera has several drive modes, including one called 'anti-shock'. And that does magic.
In that mode The pictures are sharp again. No motion blur is visible! 
The downside of this mode is that the fasted drivemode can't be used.

Review of DXO optics Pro 6

1. Introduction

Since some time I'm using the software of DXO. With this software it's very easy to do the adjustments to photofiles, especially RAW files.

Let's start with an example what's possibly done in two! minutes (Click on the photo's at this blog to see the full-size versions)


2. Sharpness and lens corrections

Let's move on with another example

DXO makes it possible to improve the quality of your pictures a lot. It's possible to improve the sharpness of the picture because DXO recognises your camera-lens combination and knows how sharp/unsharp your lens is. It's also possible to adjust these settings by yourselves.

A new example to show the possiblities to correct distortion, unsharpnes, chromatic abbarations, vignetting, whitebalance:



Because of the differnt light sources/colours (yellow, white, blue) it's pretty difficult to get the right whitebalance. Because of the multi-whitebalance it was possible to get this result. The building has pretty a natural colour, the snow on the right side of the image is white and the yellow light is stil visible, but not to much.

I also adjusted the keystoning so now the building is standing upright. The sharpness has been adjusting with USM 2.5.

Let's have a look at the details:


As you can see the chromatic abbarations are gone. All automatically! Also the sharpness and contrast has improved very much. I like this result!

3. Noise

The second strong point of DXO is noisereduction. DXO has measured the sensor output of your camera. The software knows how noise is behaving and can remove it before the actual rendering of the image is done. This leaves a detailed, smooth picture without much noise as you can see in the next example:



Noisereduction has been done very well. The noise is removed without removing much detail. (A little bit has been gone, but not more than in the original image. The details are gone because of the noise itselves). Even after adjusting the exposure the noise stays low. Most of the time when an underexposured image is adjusted noise became a big problem, not this time. I know this also depends on your camera as you can see here

4. Exposure

Adjusting the exposure is a very easy job in DXO Optics Pro. The build in single-file HDR function is great to use. It's easy to utilyse the whole dynamic range of your RAW-file. You can select some presets or adjust all the settings by yourselves. There are some sliders like blackpoint, gamma, whitepoint, etc. And you can adjust the curve to have total control over the result.

The next example shows the possibilities of this tool:

original file


Little adjustment of the shadows
5. colour

DXO has some great tools for adjusting the colour of your image. It's possible to select different colour renderings from different camera's, or even from different film types. This is really great and gives you much control over the colours in your picture. Real colors and also many effects can be achieved with a single click of the mouse.

6. Interface

The interface of the program is easy. The workflow is simple: Select > Customize>Process>View. When going through these stepps you're done. The program has no options for photomanagement. It's only a RAW-converter with the option to adjust jpeg files also. The program can be used as a plugin for Adobe Lightroom. Lightroom has everything to use for photomanagement.

This is how the interface looks like:

Click on this image to visit the website of DXO

You can adjust the layout of the program yourselves. All the pallets can be moved around and also used as a separate windows. When you have the layout you want you can save it so you can make a couple of different layouts you can use.

7. Performance

As you have seen, the results of the pictures are great. Esspecially when adjusting landscape pictures. I found it sometims hard to get real colours when adjusting portraits etc. The HDR function is great. But one thing is DXO lacking: Speed. The adjustments are done slowly and adjusting one slider will make you wait for a couple of seconds. Most adjustments are only visible when zooming to your picture for at least 75%. I think that can be done better! Also processing the images is very slow and can take more than a minute for one single file!

Update: version 7 has been released with updated performance.

8. Compare to Adobe Lightroom

Adobe Lightroom is the standard for RAW-converting. Looking around on the internet you can see Lightroom is the benchmark everybody is comparing to. How good does DXO perform against Lightroom?

Not that good. Lightroom has the same features as does DXO, but working much faster, with better results. But DXO is not absolete. The correcting of keystoning, geomatry adjusment and chromatic abbarations are not very good in Lightroom and working very well in DXO.

More comparissons of these software:

9. Conclusion

This software is great for people looking for a stand-alone RAW-converter with top-level quality. Lightroom has a more total package, but is more complicated.

The lack of speed can be a problem, but when you get yourselves a cup of coffee when starting the processing of your images, you get really nice pictures (and you could have enjoyed your coffe ;) ).

The adjustment of the geometry and colour rendering of your picture are the USP's of this software. So you can also use Lightroom or another RAW converter. 

Try it yourselves is the best test: Testversion

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