How to choose my lens

[idanidan123]

I own the 70D, and I just want to know how can I know which lens will work with my camera, because I've heard that not all lens work with every canon DSLR. I already have the 28-105mm and the 90-300mm and they work perfectly.

[idanidan123]

People don't tell me I need a FF camera, it's just that most of the time when I want to take a photo, I don't like how to sensor is cropped and I don't see the whole scale of my potential photo. Actually people have told me there's really not such a big difference, but I really want the entire scale of my photos, and not just a cropped version.

[RobertTheFat]

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@idanidan123 wrote:
People don't tell me I need a FF camera, it's just that most of the time when I want to take a photo, I don't like how to sensor is cropped and I don't see the whole scale of my potential photo. Actually people have told me there's really not such a big difference, but I really want the entire scale of my photos, and not just a cropped version.

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Ah. Is it that you don't like the fact that your viewfinder "crops" the picture, in the sense that it shows you less than you're actually going to get? That is indeed a problem with many cameras, but it's unrelated to the difference between full-frame and APS-C ("crop frame") sensor sizes. While it's true that a full-frame camera is more likely to show you exactly what you're going to get in the picture, there are "crop frame" cameras that do so as well. The 7D and the 7D Mk II do, and there may be others. So while a total solution to your problem may require a new camera, it doesn't necessarily have to be a full-frame camera.

[Waddizzle]

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@idanidan123 wrote:
People don't tell me I need a FF camera, it's just that most of the time when I want to take a photo, I don't like how to sensor is cropped and I don't see the whole scale of my potential photo. Actually people have told me there's really not such a big difference, but I really want the entire scale of my photos, and not just a cropped version.

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I understand what you're saying.  I like to shoot landscapes and my shots were not wide enough with the crop body, although the EF-S 10-22mm on an APS-C body is equivalent to the EF 16-35mm on a full frame body.  It's up to the job.  The EF-S 10-18mm is supposed to be pretty good, too.  I prefer the 10-22mm for its' internal focusing and zooming, the 77mm filter size, and being faster than the 10-18mm.

[ScottyP]

Most consumer cameras have around a "95%" viefinder.  You see about that percentage of the image that your camera will capture, so your actual image ends up taking in just a tiny bit more of the scene on all 4 sides.  

In instances where this makes any difference, you can fix this really easily in post by just cropping the image a little.  Better to have too much and need to crop than to have captured too little, since you can't zoom out in post to get more scenery than you actually captured.

The more expensive cameras do have 100% or closer to 100% viewfinders.  I definitely would not upgrade cameras based just on that though.

Much cheaper to get used to cropping in post.  Do you use a post-proccessing program like Lightroom, etc.?

[ebiggs1]

One point.  There are no ef-s lenses made with the "L" classification.  If that is important to you.  It is to me.

[ebiggs1]

"Why will you be moving to full frame?

 What does full frame do for you that an APS-C camera doesn't?"

I often ask this same question and it is a legit question.  As to WA or UWA lenses, there really isn't a big advantage in FF.  Maybe a tiny bit but you get a boost on the tele end.  So you give to get.

Canon makes a wonderful ef 8-15mm f4L lens.  That should be wide enough for anybody. It is a great fun lens!

[TTMartin]

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@idanidan123 wrote:
People don't tell me I need a FF camera, it's just that most of the time when I want to take a photo, I don't like how to sensor is cropped and I don't see the whole scale of my potential photo. Actually people have told me there's really not such a big difference, but I really want the entire scale of my photos, and not just a cropped version.

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The 70D has a 98% viewfinder, so I don't think you are complaining about the viewfinder.

What I beleive you are complaining about is your current 28-105 lens is designed for a full frame camera and doesn't give you a wide enough angle of view on your old T3 or you new 70D. You have a lens problem, not a crop camera problem. 

Again, please ignore everyone who says buy a full frame lens because someday you might get a full frame camera. You already have full frame lenses, and you JUST bought another crop frame camera. Get lenses that work with your new camera.

The Canon EF-S 10-18mm IS STM lens is an Ultra Wide Angle zoom lens and on your 70D would give you an equivalent field of view to a 16-28mm lens on a full frame camera. 

The Canon EF-S 18-55mm IS STM lens is a Wide Angle to Moderate Telephoto zoom lens and on your 70D would give you an equivalent field of view to a 28-88mm lens on a full frame camera. This is close to what your current 28-105 lens would be on a full frame camera.

The Canon EF-S 18-135mm IS STM lens is a Wide Angle to Telephoto zoom lens and on your 70D would give you an equivalent field of view to a 28-216mm lens on a full frame camera.

There are non-STM versions of those lenses, skip them and get an STM lens they have much better image quality.

[idanidan123]

Yea, I think lens such as the 50mm could solve parts of the issue.

[idanidan123]

Yes I do, but I don't do much of a post-prosccessing, just applying some presets.

[Waddizzle]

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@idanidan123 wrote:
Yea, I think lens such as the 50mm could solve parts of the issue.

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How so?  If you want "wider" photos, then a 50mm won't be near as wide as your 28-105mm zoom.  Yes, it is a much faster lens, and good in low light, but it will not give you "wider" photos.  Use your 28-105mm to get an idea what a fixed 50mm lens would look and feel like.  Based upon your original post, I'm not sure if it is the best lens choice to make.

The EF-S 10-18mm, or the EF-S 10-22mm, will give you ultra-wide images.  These lenses can give you pretty sharp images,   The 10-18mm sells for around half the price of the 10-22mm.  I think one of these will solve all of your "wider" photo complaints.

Then there are a handful of EF-S lenses in the 18-55mm and 18-135mm range.  Different versions reflect different designs.  Look for the "STM" at the end of the extended model number for those lenses.  !8mm means these lenses are nearly as wide as the ultra-wide zoom lenses I mentioned above.  These lenses are what are known as "standard zoom" lenses, good for walking around like a tourist.