Photo Tip: Sharpness 3

Sharpness.

Something all photographers worry about, this the third in a series of posts will look at:

Aperture

The aperture you use can have a major impact on sharpness. The effect can be pleasing or unwanted.

Generally most lens will be a little unsharp wide open, for a fast portrait lens a little unsharpness round the edges can be quite pleasing. The main difference between ‘professional’ lens and ‘consumer’ lens is generally, they are faster and a little sharper wide open, but you can still get great results with cheaper lens. The key is to use them at there optimum aperture. Most lens even the cheapest can perform quite well when stopped down a little.

If your after a simple rule use your lens at f/8 or f/11 and you will get the best out of it.

There is also another consideration. Defraction. Closing down the lens a little does improve sharpness but closing down too far actually starts to lower quality as defraction starts to impact. So as a general rule close down a stop or two for maximum quality and sharpness but don’t stop down too much and only shoot wide open open if you want a slight softness.

Flowers using Flash

I was thinking that I would have my next flower photo shoot in the studio, but then I thought it would be good to show you what could be achieved with just two flash guns outside on a sunny day.

The setup is relatively easy.  Camera on tripod with hot shoe flash and a moderately short telephoto lens in my case a D200 with a Nikkor 105mm f/2.8.

To my right I mounted a Nikon SB-800 hotshoe flash.  This was mounted onto a small light stand and was firing into a small brolly.

The camera mounted flash was set up as a trigger and was not contributing to the overall exposure.

Behind the flowers I had a black cloth. This was supported by the usefully provided double ended clip that comes with the Nikon Macro Flash kit.

The actual exposure was very simple I switched the camera to manual and set the flash to FP Hi speed sync.

I picked a shutter speed in conjunction with an aperture to give me sufficient depth of field and but would underexpose the picture.  The flower exposure would be handled by TTL flash.

After a couple of test shots, the photos looked a little dim, so I dialed in +2/3’s of a stop and they looked good.

Photo Tip: Sharpness 2

Sharpness.

Something all photographers worry about, this the second in a series of posts will look at:

Tripods.

Most people own one, but how many of us actually carry one with us. I’ll put my hand up. I certainly don’t use it as much as I should.

A few points to consider, a tripod thats not with you is useless.

Invest in a good one, a good head and get the brackets for your camera.

If your looking at saving money then spend all your budget on a set of legs.  Then when you can afford it buy the head later.  Then buy the brackets for the camera.  If your eager to start using your tripod then buy a cheap head that comes with a quick release platform, but beware you will need to replace it.  A poor head design will after a while frustrate you to the point you will stop using your expensive tripod.

If your after a recommendations for legs then Manfrotto and Gitzo are top of the class.

For heads then most pro photographers use not Manfrotto or Gitzo heads but Arca or Really Right Stuff Heads.  A warning to you, you can spend over £1000 on a good head.  For most of us that is over kill but do consider spending over £100 pounds.

Lastly a brackets for your camera.  A cheap quick release plate may do to start , if your using medium format or large format then this may be all you need.  For 35mm where you will be switching from portrait to landscape and back, and generally be more active on the tripod you may want to consider custom brackets that will not slip once fitted.

For more information see a previous blog entry here and also Chris Bennet’s blog.

Loading a Hassleblad 120 back

Film: Loading a camera.

A bit of a lost art now a days.  Most 35mm SLR users have now switched to digital, and most of the last 35mm SLR’s were auto loading.  For users of medium format, large format camera’s, film is still the medium of choice.

For Hasselblad users of the V system, loading a film for the first time can be tricky so heres a very useful youtube video to help you out.

Photo Tip: Sharpness 1

Sharpness

Something all photographers worry about.

Most photographer’s solution to this perceived problem is to spend lots of money.

  • Always upgrade the camera, every year new models come out, I’ll get better results that way.
  • NO!
  • Better glass, my lens is not the latest, it is consumer glass not ‘Pro’ glass.
  • NO! (well at least not yet, this is a far better investment then in a digital body that will be worthless in 5 years).

Lets get back to the basics.

Camera Technique

First Hand Holding.
Support the camera with your left hand, cradle it and take the weight. Hold the grip with you right hand.

Firing the Shutter.
Don’t just jab at it, press gently, both the depress and the release should be gentle. Camera movement can be introduced at this point.
If necessary use your motor drive. Shoot a batch of three pictures using it. Your first shot might be blurred but the second is likely to be sharp. Release after the third shot.

What is your shutter speed? It should be at least the reciprocal of the focal length.

If your focal length is 50mm shoot at 1/60 of a second at least. If shooting with a 200mm lens use 1/250 etc.

If your hand holding technique is particularly bad double up, for a 50mm lens use 1/125.

Understand VR.
Use it at slow shutter speeds but once your speed climbs above 1/500 – 1/1000 of a second turn it off, above 1/1000 it can actually make your pictures worse.

Subject movement.

Don’t forget subject movement, use a fast enough shutter speed to freeze any movement in the scene.

Tripod’s.

Well i’ll mention those next month, but check out www.cbphotoblog.com and www.bythom.com

Lastly something that I am particularly bad at.  When you use a large aperture then focus is critical. I hate to think how many killer shots I have just missed because my model is out of focus, when using the f/1.4 – f/2.8 range.

Preparation

Tomorrow I have a half day’s shoot, a mix of location and studio.

The Studio is booked and so is the model, I now have less then 24 hours left.  What should I be doing, what should you do to prepare for your shoots.

Well, for a paid shoot, my preparation starts at least a month in hand, for weddings sometimes over a year in advanced.

Tomorrow is just a simple test shoot but still preparation is key.  Obviously at this point the studio is all booked, location checked out and the model booked, what else should you consider.

Well, communication with the studio and model, all should continue.  I generally drop the studio and the model(s) an email a week before and the day before.  Just to ensure everything is clear.  Times, addresses, shot list, themes, clothes list.  Also contact details.  My email and phone number, the studio’s / location’s address, meeting points etc.

Equipment is important, and should start at least week in advance.  Check and clean everything, decide on what lens, what format’s.  For this shoot I will be shooting APS-C cropped DSLR and medium format.  The Digital SLR’s will be a pair of Nikon D200, perfectly adequate for this.  A wide angle zoom, a fast f/1.4 standard lens, a 105mm portrait lens and a standard fast f/2.8 zoom and telephoto zoom.  The medium format will be a Hassleblad, with standard lens and two backs.

The lens I have chosen with the shot list in mind.  I will also be taking two light meters, a heavy tripod, light stand and brolly with infrared trigger.

A week before the equipment was all checked, batteries all charged.  It was at this point I realised one of the batteries for Nikon D200 was starting to not hold its charge, so a trip to the local camera shop was planned, and I purchased a replacement.

The shot list was all written down as was the clothes list, and provided to the model, there is also a few items I will be providing, so tonight as well as packing the camera bags, and lighting bag, a prop bag was also packed.  Things like fans, glasses, hats, etc.

For the IT geeks like me there are computer applications to assist.  I use the simple PhotoAssist.  This is a useful little app for the iPhone and iPad that enables you to create equipment lists, prop lists etc.  I have custom lists for things like Nature, Portrait, Weddings and Travel.  This list the common things I need for things like these.

If there is any advice I can offer it is just this.  Communicate, ensure all parties know exactly what is required of them and when.  Have your equipment ready; cleaned, checked and know how to use it.

If you do not know your equipment, then you cannot focus on the picture.  Remember your equipment and how to use it, should all be second nature to you.  All your attention should be focused on getting the image and keeping your model engaged, and happy to work hard with you to get the image.

Studio Flash with a Hotshoe Flashgun

Using your hotshoe flash in your camera hotshoe is about the worst way of using it.  Getting off camera is the best way, but how to do that.  Well if you happen to have a light-stand you can use the method I use.

I recently purchased a Lastolite Tilthead with hotshoe.  Its a way of getting studio quality light thats easy and portable.

This on top of a light-stand enables you to attach a normal camera flash gun.  It also allows you to attach a standard brolly.  With this simple setup you can get studio quality light with very little cost.  It certainly does not have the power of studio flash but can produce great results.

Synchro Daylight or Fill in Flash

No work today, but I did want to do some experimentation with Synchro Daylight.  An old term but basically its when you mix flash and daylight together.  Most people have heard it described as fill in flash, it can also be used with great affect when the flash is the primary source and the sun as the fill-in.

Its something I have used in the past to great affect, and modern hot-shoe electronic flashguns to make it very easy.  But I wanted to have a play around with manual, and trying out the balance flash functionality in my light meter.

Sekonic L 758 Light Meter

I bought the L-758 for its spot meter feature when shooting medium and large format.  But it also has some advance flash features and can show the balance of daylight to flash.

So equipped with a Nikon D200, a Nikkor 24-70mm f/2.8 and a SB-800 flashgun I ventured outdoors with my flash meter and volunteer model for the day, my very patient wife Caroline.

First a simple portrait with daylight, manual mode.  Easy.  Then the flash set to manual at relatively low power.  The light-meter held by my wife under her chin with the de-fusion dome pointing at the flash gun.

After several attempts and varying the flash power, the meter was only reading the flash component.

I had to commit the ultimate male sin, find the manual and give it a quick read.  Unlike previous meter’s I had set it to the Flash-C, but this actually meant Flash with a cord, not Flash and Continuous light.  The mode that had just the Flash symbol turned out to measure both flash and continuous light.

With the light meter now in the correct mode we tried again, varying the exposure and flash output and reading the balance of daylight to flash from the meter and comparing that to the results seeing what we liked.

It certainly makes judging your exposure when mixing flash and daylight easier and I hope to put it into good practice with a summer beach photo shoot I intend planning.  I just need to find a location, a suitable model and a bit of good weather.

Heres looking forward to summer.

Daylight and Fill in Flash – Model in the summer house

Tripods – buy once not several times

I was asked today for some advice about tripods.  This is an area where many amateur photographers go wrong.

Many photographers buy a basic tripod then get frustrated with its limitations and either stop using it or buy a better one.

Its best to just bite the bullet right at the start and spend a reasonable amount on a tripod, budget some more on a good quality head, and then also do not forget brackets for your camera.

For the price of a good quality head, or brackets you can buy a complete tripod system but I would advise against it.  Your just throwing money away.

Thom Hogan wrote one of the best article about tripods you can read it here:

In case you wondered I purchased a Manfrotto 055 Tripod with a Manfrotto Ball Head about twenty years ago.  My head is getting on a bit now and is not as easy to use any more, so I am looking for a replacement that uses the Arca Swiss release system, but the tripod is still going strong.