Hey guys, a while ago I went to my LCS and checked out the d3200 and d5100. When I was changing the aperture, it showed an aperture of f/22, but I thought to myself "If that says f/22, why does it say f/3.5-5.6 on the lens exterior?" I'm not a total noob, as I've been researching every single thing about using full manual mode, dof etc... I just never thought to ask what that's all about haha. I know smaller f-stop=bigger aperture just so you don't say that
This might be the most stupid question ever, but I need some help with aperture...
- Thread starter jakehinds
- Start date
Don Kuykendall_RIP
RIP :(
Ijustwant1
Senior Member
Yup Don's right ! Now put the 50mm f1.8G on and let the fun start 
Yup Don's right ! Now put the 50mm f1.8G on and let the fun start
Oh, so every lens has an aperture of f/22-f/2 excluding certain lenses? And at 18mm, I'd have an aperture range of f/22-3.5 and 55mm would have a range of f/22-5.6? Am I understanding this right? haha
And Ijustwant1, I don't even have the camera yet! I've been planning everything out, and my first lens purchase other than the kit lens was going to be either the 35mm 1.8g or the 50mm 1.8g. People were saying the 50mm has better bokeh and is sharper, but since the D5100 isn't a full frame sensor, the 35mm would turn out to be around 50mm and the 50mm would be like 75mm so I wasn't sure.
Yes that's just about right. The 3.5 to 5.6 is the widest they shoot. But you can stop down all lenses. And honestly lenses are not the sharpest wide open.
Ok...about the lens. If you will be doing portrait outside...I suggest the 50mm. Inside shots the 35mm would be better. Now....what you can do is use your kit lens and take photos at 35mm and 50mm. See what you use more. You may find you need both.
Shoot more than you buy.
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Okay, sounds good! I'll be getting the D5100 for my 16th birthday next month, then I was planning on just saving a whole bunch of money to get a telephoto then a prime
That's incorrect. A G lens is a lens without an aperture ring. Only lenses with a motor, AF-S lenses (and third party equivalents), will autofocus.
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Very true. Af-s are the ones with the focus motor. But in keeping it simple stick to G lenses and not D.
While usually the AF-S status is usually listed.....the G always seems to be.
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Ijustwant1
Senior Member
That's true ! But have a think about the future, a "G" lens is made for full frame sensors as you stated before the 50mm will give the view of 75mm on the D5100 but in couple of years you may want to upgrade to a full frame camera and if you do you will already have lens that are fully comparable ! Just my opinion ! And happy upcoming birthday
That's true ! But have a think about the future, a "G" lens is made for full frame sensors as you stated before the 50mm will give the view of 75mm on the D5100 but in couple of years you may want to upgrade to a full frame camera and if you do you will already have lens that are fully comparable ! Just my opinion ! And happy upcoming birthday
So much bad information on here at times....G lenses have nothing to do with the sensor size. Again, all G means is the lens does not have an aperture ring so the aperture must be controlled by the command dial. There are G lenses in DX and G lenses in FX. If you want to purchase a lens with FX in mind then avoid DX lenses.
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Whiskeyman
Senior Member
Nikkor AF-I lenses also have an internal focusing motor, albeit a noisier one than most AF-s lenses.
The most foolproof way to determine which lenses work on a particular camera is to look it up in the camera manual or on the Nikon web sites.
WM
Whiskeyman
Senior Member
Don't know about so much bad information in here, but this thread seems to have a bit of it. In addition, the good information is getting confusing in its presentation. I'm having a bit of difficulty tracking what is being said.
WM
Ijustwant1
Senior Member
Sorry I was not very clear ! As jwstl has said stay away from DX lens if you want to upgrade to FX !
ohkphoto
Snow White
Did you get your question answered? I notice the thread got slightly "branched away" from your original question, which incidentally was not a stupid question. You have some good suggestions here for a telephoto until you decide what you REALLY want . . . it will depend on what you like to shoot and how. What a great birthday gift! . . . and happy birthday to you in case we forget it next month!
I have a better understanding now, but I think it will be MUCH clearer once I actually get to play around with it. And thank you!
Horoscope Fish
Senior Member
Simply put any lens can stop down to f 22 and for most, that is as low as they go (yes, there are exceptions, so those of you about to get your knickers in a twist can relax now) so this is just assumed and not printed on the lens itself.
Not all lenses have the same maximum aperture.
The lens barrel shows maximum aperture for that lens at its shortest focal length and largest aperture the lens can do at its longest focal length. For example, if we have a 55-200mm f 3.5 - f 5.6 you can have f 3.5 at the shortest focal length (55mm) but at the longest focal length (200mm) you can't, you can have, at best, f 5.6 with this particular lens.
A lens that can have a maximum aperture of, say f 2.8 at 200mm would be said to be "faster" than a lens that can have a maximum aperture of f 5.6 at 200mm. It will also cost you significantly more, but that's a whole other issue.
I hope that helps to clarify...
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