Mastering the Basics - Lens Basics Pt. 2

Author: Alex  |  Category: Tutorials

In my original post I reviewed the various choices of lenses available to those who use a interchangeable lens camera such as Single Lens Reflex camera, and those using Micro 4/3rds systems. (Sorry P&S and Prosumer users, this one isn’t really for you). So now that you have your amazing collection of glass in your collection, we can start picking and choosing for various situations.

Landscapes
The choice for this one is obvious, you’re going to be looking for a wide or ultra wide angle lens, this will easily help you capture the vastness of the shot. If you’re going for a more interesting look, especially with a cityscape, you may even choose a fisheye lens to get that rounded look. Occationally you can use a longer lens for landscape work, the photo that makes up the banner for this blog was taken using a 50mm lens on a crop sensor (so a 75mm focal length), but I was fairly distance from my subject and pulled off a wonderfully sharp shot.

11mm Test
Nikon F80 ~ Tameron 11-18mm 1:4.5-5.6 DiII @ 18mm (true 18mm as it’s a 35mm camera)

Architecture
This is the area of photography that I cut my teeth on. In this case again you’re going to be working with ultra-wide and wide angles for the most part here as you’ll want to capture the whole room in your shot, and when working with crop sensor bodies, your 24mm lens won’t really cut it anymore. I found this out when I first switched to a Digital SLR with a crop sensor. I still take time to go and capture the abandoned buildings that I travel far and wide for, and my ultra-wide lens is usually with me. But in many cases, I leave my versatile 17-55mm lens on my camera for ease of use and keeps the switching of lenses inside these buildings to a minimum.

Final Rest
Nikon D70s ~ Sigma 18-50mm @ 18mm (27mm with the crop factor).

Portrait
The main mistake that many people make when it comes to portrait work is that they use a wide angle lens, then zoom with their feet. Because they need to get that full body shot, so they zoom out to the widest they can go, and stand fairly close to the subject. Trust me, this is not flattering.

A rather brutal example of this, is my friend Alex here. I used a 10-20mm lens, set to 10mm, as you can see I got up rather close to focus on the head and shoulders area, it’s rather distorted, in this case it is a neat effect for a fun off the cuff shot, but this would not cut it for a professional portrait shot.

Ice Cream for Breakfast
Nikon D300 ~ Sigma 10-20mm @ 10mm

If this was a more professional shot, I would have picked a longer focal length, 50mm or greater, and stood up higher, to keep everything in the correct proportions. So when going for a portrait work, stick to prime lenses with a focal length (before or after a crop) of 50mm or greater. I regularly use my 35mm lens to do group shots when I don’t have a lot of room to work with. That is the one downside to all this, you do need more room the longer of a lens you are working with.


Nikon D300 ~ Nikon 85mm

As you can see, similar to Alex as before, but now Amy is wonderfully proportioned, in this case I had some room to play with being on the streets, my 70-200mm lens would work great for this as well.

Event/Photojournalism/Street
This niche of photography is really dependent on the whole situation. I’ve used both Prime and Zoom lenses to shoot events and out on the street, and I’ve found that I gravitate more towards the long zoom lens, mostly because it gives you more freedom to catch the event or action as it happens in a candid manner. So grab a telephoto for this so you can keep yourself both in the action and yet just outside so that they don’t see the lens focusing in on them almost causing them to stage the action.


Nikon D300 ~ Nikon 135mm

I used a prime lens for this particular event, a protest for and against the Israel invasion of the Gaza strip earlier this year. It worked really well for a manual focus lens.

Macro
This isn’t really my area of photography, but many manufactures produce specialized lenses for the purpose of photographing things close up and detailed.

Macro

I do keep a Macro lens in my collection, but I don’t think I’m going to be keeping it much longer as I don’t use it.

You’re probably wondering why Weddings isn’t mentioned in this list, because a wedding is a merger of two general types, event and portrait, so pick your lenses appropriately. If you really want to you can get away with only two lenses for weddings, a wide to normal (17-55mm) and a telephoto (70-200mm) and that would have you covered.

Mastering the Basics - Lens Basics

Author: Alex  |  Category: Tutorials

If you use a Point & Shoot or Prosumer camera, you can pretty much skip most of what is said here, this is more aimed at users of cameras that have an interchangeable lens system. Rangefinders and SLRs.

When it comes to lens, there are two types of lenses, zoom lenses which can change the focal length, and prime lenses, which have a fixed focus.

17-55
The Nikon 17-55mm is an example of a zoom lens.

Fifty
The Nikon 50mm is an example of a prime lens.

Each types have their pros and cons. Zoom lenses offer you excellent versatility especially when shooting events where you often need to have a wider view angle, when photographing groups of people, to being able to focus in on the action. If you just have a prime lens on, you have to do your zooming with you feet, or fumble around with multiple lenses at any given time for the situation. However zoom lenses with today’s technology can only have a max aperture of f/2.8 without being really expensive or very large. Prime lenses, can be a little cheaper than a zoom lens, but be much faster, my 50mm f/1.8 lens is only $150.00. Prime lenses are great for portrait work, or low light situations. I once shot almost an entire concert using my 50mm f/1.8 lens.

There are four categories into which both types of lenses fall into, based on the focal length of the lens.

The first is Ultra-Wide, this is what lenses with a focal length less than, but not including 35mm, fish-eye lenses (which offer a 180° angle of view) fall into this category. Best to use these for landscape and architecture work.

Wide
The Tameron 11-18mm lens, is an example of an ultra-wide zoom lens.

Holy Cross Mission
An example photo using an ultra-wide lens, using the Tamron mentioned above @ 11mm

The second category is Normal, the reason it’s called “normal” is because is almost duplicates the angle of view that your eyes have (eyes are approximatly a 50mm lens so if you’re on a crop sensor camera, use the mag factor to determain what lens will give you the 50mm length, on Nikon & Canon you’ll want a 35mm lens, on 4/3 camera a 17mm lens). This covers the range of focal lengths between 35mm and 70mm.

35mm
Nikon’s 35mm lens.

Sept 30th, 2009
Taken with a 35mm lens, with the crop factor it is at 52mm.

The third category is telephoto, this covers focal lengths between 70mm and 135mm, often used for portrait, street, and photojournalism, as you can often get a compact lens that still give you a good reach. You can even still get a fast lens for a decent price at this range, even in zoom and prime. Again have a crop sensor, gives these lenses even more reach.

Pressman
An old Nikon Manual Focus 105mm telephoto lens, a classic lens favoured by photojournalists.

Faces of Worship
An example of a photo, even on a modern dSLR, the old Manual lenses perform wonderfully.

The fourth and final category is super telephoto, this occupy any focal length greater than 135mm, there are some lenses that are 500mm and higher available. If you’re doing a lot of sports, nature (wildlife), and aerial photography (or stalking) these are the lenses for you, often bulky, and for a good fast lens, you’ll be shelling out upwards of $2000.00. However if you do spend the money, it is well worth it, even for street photography, if the area is crowded enough, you can get the shot you want without being seen.

Size does matter
The Nikon 70-200mm f/2.8 lens is great telephoto lens, for moderate duty, plus if you add a telecoverter to it, you can get it to reach even further. However it is a bit noticeable, and rather bulky to carry around.

Don't be late...
An example photo @ 200mm

Stay Tuned for Part 2, more on how to choose a lenses and why to use certain lenses for each application!

Mastering the Basics - Choosing a Camera

Author: Alex  |  Category: Tutorials

Sorry I haven’t been posting more of these, but I’ve been collecting my thoughts on what else to post in this series. One question that I often am asked is the “What type of camera should I get?” so hopefully if you’re asking this question and stumble across this post I’ll be able to answer them for you!

Today there are several different types of cameras available to users, both in the film and digital range.

First off, there’s the Point and Shoot (P&S) cameras.
A460

The Canon A460 is an excellent example of the lower end of the P&S spectrum, often these cameras have a simple zoom lens, or a fixed focus lens very little in the way of manual overrides, designed mostly for quick snap shots on the family vacation. Of course, there are higher end point and shoots, like Contax (in the Film world) and even Canon’s G-Series. Higher end cameras often have better lenses, more manual control, and better image quality.

G7
The Canon G7

Prosumer cameras, are exclusively digital, these cameras, often have the look and feel of a Single Lens Relflex camera, often with a powerful zoom lens, manual control, and excellent image quality.

Lumix
The Panasonic Lumix FZ-7 is an example of a Prosumer camera.

The PEN is Mightier
Direct view cameras, or Range Finders are often associated with the brand Leica, who has legendary cameras and lenses. These cameras, especially in the film world were unique in the fact that the view finder was offset from the lens itself. In the digital world, the viewfinder has been replaced for the most part with a LCD screen. These cameras feature interchangeable lenses, and have recently been making a comeback with the Micro Four Thirds system being used in the Olympus E-P1 (pictured above) and the new Panasonic GF1. Leica also has it’s M8 and M9 digital rangefinders.

Joy
The SLR, or Single Lens Reflex camera, has been one of the most popular and well known cameras in the photography world, the design hasn’t really changed since they were first invented and released. The name itself comes from the way you operate the camera. Single Lens, easy, when you look in the viewfinder you’re looking through the lens itself, the Reflex is the mirror traveling up, blocking the viewfinder and sending the light onto the film through the shutter curtain. These cameras offer a wide range of modes of operations, making it very versatile.

So, now that we’ve covered the basic cameras that are readily available, you can work on making a choice on what sort of camera to get. The first step is to of course figure out what sort of things you’ll be needing your camera for.

If you just want a camera to carry around in your pocket to capture family stuff, events with friends, you’re going to want to go with a Point and Shoot. The type you go with all depends on how comfortable you are with photography. Have big hands, but just need a basic camera a Prosumer one would be the way to go.

When it comes to Rangefinders and SLRs, most people who go for them already are well versed in the area of photography, but even now these days most companies are building SLRs aimed at the entry level market (Canon XS and Nikon D5000/D3000). If you are considering to really ramp up your photography, or want to do most photojournalism, in addition to capturing family moments, go with an SLR.

Another type of camera that is making a come back is medium format. Again both are available in film and digital varieties, although I only have major experience with the film type, but I have used the digital ones and they are amazing to use. The film used in Medium format cameras comes in various sizes, but all share the same basic characteristics, it comes in rolls, usually with some form of backing paper, it is rolled off one spool and onto another one. The two main types of Medium format that are still readily available these days is 120 and 220, the difference between them is that 220 has twice the length of 120, and lacks backing paper.

The size of the negative on the film depends on the type of camera you shoot with, it ranges from 6cm x 4.5cm up to 6cm x 24cm. Most cameras use 6×4.5, 6×6, or 6×9 these days. Like the cameras mentioned previously, you can get range finders, SLR, and one other type, Twin Lens Reflex (or TLR). With TLRs look different from most cameras you see, for the most part you look through the top of the camera to compose the shot using the top lens. But it is the bottom lens that actually lets the light in to expose the film. TLRs are very uncommon to find new these days, but there are a few “toy” or cheap plastic ones that are still produced today.

BOX
An Agfa Box camera, produced in the 1930s, uses 120 film and produces a 6×9 negative.

Tales of a Yashica-12
A Yashica-12 Twin Lens Camera, produces a 6×6 negative.


A Mamiya 645, a SLR type medium format camera, it can use both 120 and 220 film, and produces a 6×4.5 negative. This type of camera you replace the film magazine with a digital back, another major brand of this type of camera is Hasselblad, which also has digital backs for their cameras.

Hasselblad also produces a strictly digital medium format camera, which are very expensive, yet fun to use.

Medium Format cameras were at one time used for portrait work, because with a larger negative could produce cleaner enlargements, but modern digital technology has taken over these, because of two reasons, you can get more shots on a card, and you won’t have to carry around tonnes of film. Digital Medium Format cameras are uses almost exclusivly by the fashion industry (Melissa Rodwell is known to shoot with a Hasselblad Digital Medium Format.), and commercial photography that requires huge billboard sized enlargements. TLRs and toy cameras are aimed these days at the art students, often producing strange effects on the resulting shots.

The Final type of camera is large format, these are exclusively film cameras, and use what’s called Sheet Film, one shot per sheet. Ranging in size from 4 inches by 5 inches, and upwards to 11 inches by 14 inches. Commonly you still see 4×5 and 8×10 cameras around these days.


A Crown Graphic, a common 4×5 type camera.

You would use a large format camera if you want amazing details, and no need for enlarging your shots from a smaller format, as you can easily shoot in the format you want to print. LF produces the least amount of grain in an image, with the highest definition of detail, it blows the lid off any smaller format and any digital camera commercially available. Of course You only get one shot per sheet, and 8×10 negatives are running upwards of 110.00 for a pack of 25 (4.50 per sheet), so if you mess up, you’re out almost five dollars. It is also very hard to find places that actually develop LF these days, unless you can do them yourself.

Mastering the Basics - How A Camera Works

Author: Alex  |  Category: Tutorials

Good Morning, and welcome back. I was thinking last night how to improve and expand on things I post here, and came up with the idea to do a series of posts titled “Mastering the Basics” sort of a refresher course for photographers and myself in creating these. There will probably be some sprinklings of technical and slang terms in here, but I hope I have explained them well. If you have questions feel free to leave a comment and I’ll work on explaining things further or answering them.

So why not start right at the beginning on how a camera works.

F3 - 01 D300 - 03
Here are two examples of Nikon cameras. The one on the left is a Nikon F3, the Professional camera from the 1980s, on the right is a Nikon D300, my current main camera. Now the question is, do these two camera work in the same way?

Yes, they do.

One fact that is often lost is that all cameras, from the very first camera to the latest and greatest work on the exact same principle. Light, reflected off an object is directed through a lens or hole onto a light sensitive recording medium, and stored. The only difference is what the medium is and how it’s stored. In the case of the F3, it uses Film, which both records the image and stores it. The D300 using a sensor and then stores the image on a Compact Flash card. Yes, even your point and shoot camera works with these same principles.

Controlling Light. As I mentioned earlier, a camera directs light through a lens onto a light sensitive medium. If you just let all the light into the camera onto the medium you’ll just be seeing white. Lots of white. This is why you need to control the light being recorded. There are three things that do this, they are aperture size, shutter speed, and senstivity.

Aperture controls the amount of light going in, shutter speed determines how long the light is let in, and sensitivity determines how receptive to light the medium is.

Aperture: when you look at an eye, notice how in bright light the pupil goes smaller and in darkness opens wide, the camera’s aperture works in the same way.

Pressman

When you look at the lens you’ll often see a series of numbers and letters. Of course there’s the 105mm, this is the focal length. But the one that we’re going to focus on is the 1:2.5. This indicates the maximum aperture the lens has, or how wide open it can go, these numbers are called F-Stops they are also written as f/2.5 or f/4. You might also see 1:3.5-4.5, this means that the maximum aperture is variable based on the focal length, this is often found on point and shoot lenses, or lower end zoom lenses. So while at the one end of the focal length you might have a maximum aperture of f/3.5 when you zoom all the way in, you’ll only have a maximum aperture of f/4.5. The lower the number the larger the maximum aperture, so a lens marked 1:1.8 will be able to let in a lot more light than a lens marked 1:5.6, so the f/1.8 lens is called faster. But the more open the aperature is the less of the photo will be in focus, this is called depth of field, which I will discuss in a later posting.

Shutter Speed: The shutter is often a piece of cloth or metal that protects the light sensitive material, the shutter speed determines how long this curtain is open. This speed is often listed in fractions of a second, noted by a quote mark so 1/60″ would indicate that the shutter was open for one sixtieth of a second or 30″ would indicate the shutter was open for thirty seconds. On average a person can shoot at speeds of 1/60″ or faster (1/100″ ect), this eliminates the appearance of camera shake in your images. See the photo below.

Blur in the Dark
This is an example is a little extreme (6.4″ shutter speed), but shows off what camera shake is, most people will see this when shooting at speeds around 1/30″ or slower (1/15″). Of course camera manufactures have been working on new ways to assist by installing Image Stabilization (There are many names for this, Nikon uses VR or “Vibration Reduction”) on lenses or in camera.

Sensitivity to Light: As the name suggests it is how sensitivity to light the medium is. There’s really no real way to explain it. This sensitivity is measured on a scale known as ISO numbers (pronounced Eye-Ss-Oh, not eye-so). The higher the number, the more sensitive to light the medium is. However there are drawbacks to using a higher ISO, you get more grain (or noise in the digital world), this is noticeable aberrations in your images.

So combining aperture size, shutter speed, and sensitivity is how the camera determines how the light is captured. The real trick comes with choosing how to use all three in concert. But that will come with later posts, and a little more about manipulating the each setting to get the look you want.