shashikant_narsale

<p>Thanks a lot for all your responses.... and i appreciate and very thankful for guidance...</p>

<p>Rodeo Joe: Thanks alot for reiterating the response and now i am very clear on how camera aperture work with prime lens in manual settings...<br>

I am very happy with purchasing of this Nikkor 50mm 1.8D lens and cleared my doubts after reading following line:<br>

"Whatever aperture you set on the camera is applied to the lens via a little lever, but only for the very short time of the exposure."<br>

Again Thank you Rodeo Joe and all responses i got here....</p>

<h2> </h2>

<p >Hi,<br>

I am beginner in photography and I just purchased Nikon 50mm f/1.8D AF lens and using it on my Nikon D5100. When I fixed the lens to my D5100 it said no lens set aperture to F22 and lock the aperture ring...So i did it. Then I was not able to rotate the aperture ring to make it 1.8F. I can understand that it is locked on F22 so I can’t move aperture ring. It is ok but I was little worried but then i was able to change the aperture to F1.8 in the camera settings (D5100) in A priority mode or M Mode.<br>

Everything was fine but keeping the aperture at F1.8 i turned off the camera and opened the lens to check whether the aperture has really opened up completely. But i found that it was small hole which is equal to F22.<br>

I did some experiment to check the lens's diaphragm with view finder and live mode, (To see bigger or smaller Aperture hole from the front of the lens while lens is attached to the camera and changing aperture setting from camera), When I turn live button on than I saw through the lens and found that the lens's diaphragm (aperture) is very tiny hole. After that I turn off the live button, so I can see through the viewfinder and checked for lens's diaphragm (Aperture) and found that it is widely open aperture at 1.8, how is it possible when aperture ring is locked on F22? It supposed to tiny hole at F22. I tried different aperture value from camera but I can found only big hole (the lens's diaphragm) and tiny hole from the lense.<br>

If camera control the aperture than why lens is locked at F22 and why I can’t see middle range hole (aperture) from the lense.<br>

Now my question is ... Does changing the aperture in D5100 really changing the aperture or its just shows at F1.8 on viewfinder or screen but in reality its still F22. Why when i open the lens at F1.8 setting in D5100 the aperture hole is still small=F22 ?<br>

When the lens is attached and the camera is on i cannot see/verify that aperture has really opened up..<br>

I may sound wierd but i want to make sure i am really using F1.8 aperture on my D5100.<br>

Does it make any difference of using live view and viewfinder for this 50 mm 1.8D lens on Nikon D5100?<br>

How can I achieve sharp photo with this lens I mean no background blur while subject in focus?<br>

How can I use multiple focus point (Red dots that I see through viewfinder) to make 2 or more subject (Like Group of people photo) in focus?<br>

Thanks in advance for kind reply…</p>

<p >Regards,<br />Shashikant<br />India</p>