Cameras, Lightroom, Photography, Processing, Tutorials

Ultraaaa wide

8 9

Recently I have been commissioned for to shoot for a dental hospital. It has surgical facility and all the associated laboratory facilities. Any person coming to the hospital with a dental problem can get all his needs attended to under a single roof.

To get on to the theme of this topic, this type of indoor shoot sessions need to be preplanned and made execution-ready with a certain thoroughness and seriousness. This would apply to all shoots that need to backed by a weighty commitment. I fixed an appointment with the client a week ahead, to firm up on the schedule and locations of the shoot. I also had a long discussion with the client about how they want the photographs, and for what purpose they want, in an attempt to understand what are their intentions/ideas are and the use the photographs are going to be put to. I came to know during the conversation that they are putting up a website to show to the world the facilities/competencies they have. It was, at this point of time, important to understand the level of lighting that needs to be maintained at the time of the shoot session. The choice/trade-off was between using auxiliary/sophisticated lighting at extra cost or use existing lighting/minimal equipment and bring out the best possible pictures under the circumstances. Needless to say, the customer wants pictures that would be used in a marketing showcase, be it in digital form or print form(web, brochures etc.).

I surmised that the shoot can be done only by ultra-ultra wide lenses and I selected Canon 16-35mm f2.8 L II as my boy along with Canon EOS 5D M III as my recorder and Canon 50mm prime f1.8 for few portraits of the staffs. This shoot is not really an artistic portrait, you don’t have to look out for exotic views or angles as the photographs are meant for the general public (patients too). Simplicity and neatness are the key elements.

Simplicity

During the shoot I stick with one rule “Either keep the room’s vertical lines parallel with the vertical lines in the frame or horizontal lines in the room parallel with horizontal lines in the frame, if possible keep both. But definitely not without either, which will make something extraordinary or ugly. Even when you shoot this cautiously you will end up with a  noticeable amount of both barrel and pincushion distortions .

Lightroom comes in to rid the pictures of all the distortions and it does automatically if you select Auto for most of the lenses. Manual intervention is required for all the ultra-ultra wide lenses for manual correction might be necessary because automatic correction based on lens profiles are not very accurate when distortion levels are too high.  It is necessary to be careful while making corrections for distortions. You have to careful while correcting though.

Both of the photographs here have been corrected in Lightroom. Here is a quick peek into Lr Lens Corrections. The Lens correction panel has been further divided in to Profile, colour and Manual. The first sub panel “Basic” is the front control of the next two panels. If you check the check box all the auto correction will be applied by Lr. Even after the auto corrections, if you feel to fine tune it you have to click the respective panels. When shooting jpeg some older cameras might not provide lens information in the image file and in such cases we have to remember the lens used and later choose it in Lightroom’s Profile subpanel,  if it is present there and then Lightroom will apply the relevant corrections to the image.

Neatness

If you are not satisfied with the Lr’s Chromatic Aberration correction, you can do it manually by clicking the eye dropper directly on the image where the CA appears. You can easily find it out by viewing the image on 1:1 and for further fine tuning there are sliders. Finally the manual adjustments for lens distortion correction. The distortion slider fixes the pincushion distortion if you move the slider towards left, it fixes the barrel distortion if you move towards the right side. The vertical and horizontal slider fixes or adjusts any vertical/horizontal perspective correction if any, you wish. Rotate slider is to use it for any level correction or slight distortion too. Scale slider is to either stretch out or to squeeze in the image for any reason which may be because of the distortion correction you have applied or too much of perspective correction applied. Aspect slider is to enlarge or squeeze the image in one axis for some creative purposes and can be useful to fix images from certain heavily distorting lenses that stretches the image along one axis causing it to look skewed. Finally Constrain crop, I keep it checked all the time, so you don’t need to see the portion which is not going to be part of the photograph due to the corrections being applied. On a lighter note once the “Constrain crop” is checked here, the “Constrain to Warp” in crop tool is also being checked automatically.

It is not advisable to use the vignette here and I don’t use for the following reasons – a. The controls here are minimal – only Amount & Midpoint, these controls are  required to eliminate only the vignetting produced by the lens,  and so it is not very flexible when we want to create artistic vignetting effects b. If you have cropped the photograph and you have applied some vignette, you are not going to get the full result rather you might get some unimaginable result, because the vignette you apply here is for the full image, it won’t consider the crop you have made via crop tool.  I suggest you to use the Effects panel and use post crop vignette where you have more controls.

Heading back to Lens corrections in the Basic sub-panel at the lower level there are Level, Vertical, Full, Auto and off options. They are to correct the perspective corrections which I am not using because of following reason – I do my crop as my first correction in the develop module, while I crop I have to do the level corrections and if any perspective issue I switch to the Manual section in Lens correction panel as for the above photographs. So I am in no need to use the auto function, but I have heard from my friends that Auto does a neat job in most cases.

If you are interested in reading more about CA click here and have you heard about mustache / complex distortion or if you want to read more about distortion click here and write your thoughts in the comments section.

Cheers, Happy photographing.

About the author / 

Navanee Viswa

8 Comments

  1. Selwyn April 15, 2014 at 6:33 pm -  Reply

    Wonderful article Bro. Keep going..:) Cheers…(y)

    • Navan April 15, 2014 at 9:38 pm -  Reply

      Thanks selwyn, glad you liked it. :-) Cheers.

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