Picture Taker Loc: Michigan Thumb

"Stupidly" I have gone back overt you comments and noted that you have commented on others, Try stepping up to the plate with your great thoughts to help him.

SteveR Loc: Michigan

Judy 2011 who no longer posts here but mostly on fb also uses that configuration to great effect. She shoots several times a week at Antelope Island State Park and also Bear River Bird Refuge, though somewhat less often there. Her bird and wildlife photos are excellent. She and her husband also travel Utah and Wyoming quite a bit and have taken some stunning landscape photos as well. She also gets more different birds in her back yard than I've ever seen. Nothing wrong with a crop camera and an excellent full frame lens. BTW, she tried a 500mm lens at one time, but went back to the 100-400mm L. She has stuck with what works for her.

I might say that Judy is the best example of practice makes perfect that I have seen. She shoots and shoots and shoots. I can't tell you what that has done for the quality of her photography over the last nine years.

SteveR Loc: Michigan

Picture Taker....The 100mm lens is always a 100mm lens. However, the field of view as seen by a crop sensor camera changes to that of a 150mm lens (Nikon) or 160mm lens (Canon). They are rated as 100mm lenses because that is the distance from the lens to the sensor. That will never change. A crop camera is called a crop camera because it only sees a portion of the circle of light that the lens projects as compared to a full frame sensor. In other words, that smaller portion is "cropped."

Picture Taker Loc: Michigan Thumb

If you will note several back I pointed out that 100mm lens is a 100mm lens as reference to the 35mm film camera. Yes a 100mm lens is a 100mm lens but, when using it in a non full frame camera it ACTS AS A 150mm or 160mm or what ever.
We are getting to the point of ridiculousness and forgetting, I think, that this blog is to help each other in the attempt of being better photographers.
I am not going to offer any more of this "Picky, Pickiness" to the people looking for non photographic help.

SuperflyTNT Loc: Manassas VA

I wasn’t going to use the term “stupid”, but if you want to own it go ahead. I think you probably have somewhat of a grasp of the topic but your laziness in posting leads to a lack of clarity. Just like this post, I’m pretty sure you meant “over” and not “overt” because “overt” would make no sense there. However you could have removed all doubt by simply proofreading your post. And your original post was a lot less clear. The reason I didn’t answer was because the OP’s question had been answered and I saw no reason to clutter the thread with comments essentially parroting the same information. But if you must have it, focal length is a physical characteristic of the lens. It doesn’t change depending on the sensor size. What changes is the angle of view. So while the 28-300 lens remains a 28-300 lens on a crop sensor the angle of view is equal to what a 44.8-420 lens would give on a full frame camera. For any lens on a Canon crop sensor camera multiply by 1.6 to get the “equivalent” focal length to approximate what lens would give the same angle of view on a full frame sensor.

MrBob Loc: lookout Mtn. NE Alabama

Robert, if you are at an age where you have a little shaky hands and your camera is non stabilized a monopod can really increase your keepers and maybe allow a DOF not possible hand holding. Most folks look at us as geeks anyway and I am used to it and actually play along and act goofy just for amusement...

hnguyen99

It's true for Nikon camera but not with Canon's because you can't use aps-c lense on the FF Canon camera. The sensor will be damaged by the lense.

LWW Loc: Banana Republic of America

Was such an inference needed?

kb6kgx Loc: Simi Valley, CA

Of course, not. Some people are just rude and infantile, themselves.

Brian Hartnell Loc: Marinette WI

I have been using Canon Digital Cameras since 2000 and all the lenses I have purchased over the years are the EF series so they have fitted every body I have owned. EOS-DCS 1C, EOS 1Ds, EOS 10d, EOS 40d, EOS 5d, EOS 7d. It was easy to swap the lenses from APS-C sensor bodies to the full frame bodies and gain the advantage of longer telephoto range on the crop sensor and wider angle on the Full Frame. Just used the lens of choice to get the advantage of what each sensor had to offer. I also own a Tamron 200 to 400mm with the EF mount and it works just as well. You get that extra field of view reach with the 1.6x factor using it on an APS-C sensor to get 640 mm. That is great for the wildlife photographer and cheaper than buying the more expensive glass if you don't have the budget.