Showing posts with label Lightroom. Show all posts
Showing posts with label Lightroom. Show all posts

Sunday, 24 February 2008

One for the Bloggers

Treve form 'Sharing Experience' and a G9 User has some tips on setting up Lightroom for Blogging

Using Lightroom to produce image files for blog postings

I have been using Lightroom for a couple of months now and blogging for a few weeks. Being a photographer I want to include images in many of my posts. Before buying Lightroom I would have had to convert the RAW file and process it in Photoshop, but I thought it ought to be easier in Lightroom. So is Lightroom any good for this?


The short answer is - Yes.
Since I use RAW for nearly all my photography Lightroom allows me to take an unconverted RAW file, adjust it quite well enough for web viewing, then simply export it to a jpeg for uploading. It is quick and easy to do.
I make the adjustments I want to in the Develop module; then from the File drop down menu click on Export (see screen shot below).

Below are my Export settings, saved as a preset for producing blog images.

Most of the options are self-explanatory - My choices that I feel that may need some explanation are:
  • jpeg is the obvious format to save the image in and I have found a quality setting of 50% works well enough
  • I chose sRGB as the colour space as that is usually the recommended one for web viewing
  • I resize the image so that it is quite small, but not tiny with 500 pixels along the short edge
  • I set a resolution of 100 pixels per inch - 72 is often recommended, but screens vary and I have seen 100 recommended in preference to 72 by quite a lot of "experts" recently
  • I add in a © notice for my pictures - You can set up pretty much whatever you want to say in Lightroom and it puts it in white inside the image, in the bottom left hand corner
  • I chose to minimize embedded metadata at I don't see any benefit to including it

That's it - No need to convert to a TIF, or whatever your choice is, process it etc. Even using actions in Photoshop it would take me much longer and the © notice is an extra bonus, which again I can do in Photoshop but it would be a much more involved process.
All-in-all I am pretty happy to use Lightroom to produce images for blog postings from RAW files.

Sharing Experience: Using Lightroom to produce image files for blog postings

Wednesday, 13 February 2008

Setting up snap shooting mode on the G9

How to Set up snap shooting mode

Last week during my post on the ‘Bomb threat in Derby’ I mentioned about having my G9 set at hyperfocal distance in a “Custom Control so it is always available to me.” I have given the details on how to set it up and a whole range of options for you to choose bellow, to set the G9 up for your style of shooting using custom colours etc.

Bomb threat in Derby, UK causes travel disruption and confusion for passengers

This makes the Canon PowerShot G9 very fast from power up to pressing the shutter; (about a second) reaching for my G9 and powering it on at the same time means as soon as it is at my eye, its ready to shoot as it does not need to focus, and yet the pictures appear very sharp and in focus, this is how street photography, reportage, war, documentary and landscapes were often done with manual focus, film rangefinders, like the Leica.

Note I say ‘appear’ very sharp and in focus, and that is because there is actually only one plane of actual focus! The rest is down to depth of field from the given aperture and its relation to the point in focus

In the days of film, most interchangeable lenses had hyperfocal distance scales and Infra Red marker (IR light focuses at a different plane to daylight, so a set mark was often found on the lens to re adjust the distance, I will be doing a separate article on this for the G9) to aid in this matter and was often used a lot more than it is now, mainly because digital lenses seem to have this scale missing from their lenses. This is even rarer in a point and shoot, but the G9 can be set up for hyperfocal shooting and IR shooting too thanks to the people behind DOF Master.com and I suggest you have a good read of their website page if you want a better understanding of what hyperfocal is and does

The actual distance you set on the G9 varies depending on the sort of shooting you do. You might want it shorter if you do Landscapes and want more detail in the foreground for example or shoot candid’s from across the table but around 10 feet seems to be good for most people/subjects. The aperture you use also makes a difference; a higher f number will give more depth of apparent sharpness than a low f number.

Another factor to consider is the lens length, the longer the lens the shorter the hyperfocal range will be. Setting the G9 at its widest zoom gives the biggest scope for a given aperture and widest hyperfocal distance but you could zoom out the lens and set it as a custom option if that is what you need.

The distance you set and F number combination gives you the hyperfocal ability, which means you can set the G9 how you want for the style of shooting you do most and save it as a custom setting (C1 or C2) for a better understanding of how the focus and aperture affects the nearest point in apparent focus to the furthest go to DOF MASTER.com  and select the G9 from the drop down menu. (The focal length for the G9 is 7.4mm at its widest setting)

As an example my set up is 9 feet and set at f4.5 which gives me 3.84 feet to infinity. In practice this works out as a simple guide that anything more than arms length (and a bit) is in apparent focus, it is also easy to estimate! At f2.8 this is under 5 feet to infinity. I can alter the Aperture to adjust exposure using the Control dial on the back with my thumb

Setting it up

Friday, 25 January 2008

Reducing Noise with ACR (and Lightroom)

For the G9 at ISO 800, Thomas Niemann (of PTLens fame) has suggested the following settings in ACR Details page: (ACR = Adobe Camera Raw as found in Photoshop CS/Elements and Lightroom)


Sharpening
amount=60
radius = 0.8
detail = 30
masking = 0

Clarity -25


Noise reduction
luminance = 80
colour = 100

Source: Luminous Landscape forums

These settings can be saved as a preset in ACR and Adobe Lightroom