Question about Nikon DSLR D90 Digital Camera

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WHICH LENS WILL GIVE THE SAME RESULT OF 50 MM LENS IN FILM MODEL

WHICH lens will give the same results we get when we use the NORMAL(50 MM) Lens in SLR Film cameras.Since the sensor size is not equivalent in digital SLR 'S like the makes of Nikon D90 & CANON 50D.In short which lens will match up with these digital SLR cameras producing the same result of the normal (50 mm) lens used in SLR film cameras. please help in also choosing between the two makes I mentioned.

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To figure the equivalent coverage comparable to a film camera, multiply the number of mm by 1.5. Example: a 50mm lens will be like a 75mm lens on a digital camera.

Posted on Sep 08, 2009

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Posted on Jan 02, 2017

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Canon 7d poor image quality


Using the lens at f1.2 will give you a very narrow depth of field. The sweet spot for this lens will be about f5.6. Try that and f8 that should improve the results.

Dec 27, 2012 | Canon 50 mm f12 LSeries USM Lens

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If you had a compact camera it would say 10x zoom what is the equivilent in a 70mm -300mm tamron


A 35-80 mm lens is 2.3X zoom. Divide 80 by 35 and you'll get the result.

It is usually better to know what the focal length of a lens in "35 mm equivalent" is and judge by that, rather than relying on the "X" power of the lens. For instance, most point and shoot cameras start at about 35 mm and have either a 3X or 4X zoom. This would make it a 35-105 or a 35-140. I've seen some that start at 28 mm, though. A 3X starting at 28 mm is 28-84 and a 4X is 28-112. Neither one is a particularly strong telephoto lens and the 4X is just about the same as the 3X that starts out at 35 mm.

It's also important to realize that tradition dictates that lens focal lengths are usually expressed in terms of "35 mm equivalent," where "35 mm" refers to a 35 mm film camera. This is because of the relation between the sensor size and the actual focal length of the lens and the resultant angle of view of the lens.

I have one point & shoot that is actually a 5.8-24 mm zoom. This is a 4X zoom. The 35 mm equivalent is 28-116 mm. The sensor is 7.2x5.3 mm. (1/1.8") (And I wish I knew someone who could explain how the heck they came up with sensor size terminology!)

I have another point & shoot that is actually a 5.7-17.1 mm zoom. This is a 3X zoom. The 35 mm equivalent is 34-102 mm. "How could a shorter focal length give a longer 35 mm equivalent?" you might ask. It's because the sensor is only about 5x4 mm. (1/2.5")

I have a few Nikon DSLR's and - thankfully - they all have the same size sensor. They all have a "lens factor" of 1.5. This means that you just multiply the actual focal length of the lens to get the 35 mm equivalent and then you can make comparisons accurately from camera-to-camera. Most Canon's, for instance, have a lens factor of 1.6. On a Nikon DSLR, a 28 mm lens is the "35 mm equivalent" of a 42 mm lens. On most Canon DSLR's, the same 28 mm lens is the equivalent of a 45 mm lens.

These example are just to show you how freaking confusing it can all become if you try to make sense of the "X" power of a zoom lens.

Bottom line...

Check the 35 mm equivalent specifications for the lens. This way, you will be leveling the field and comparing apples to apples. More or less.

Jul 10, 2012 | Tamron 75-300mm f/4.0-5.6 LD Lens for...

2 Answers

I have a Nikon D-40 I'm currently using a 55-200


Fisheye is the extreme of a wide angle lens. I think you are not using a fish eye lens, but a fish eye adopter. That is a lens that will "shorten" the focal length of a lens most of the time with 30 % sometimes with 50% when you put it in front of your lens. So you could make a 24 mm lens look or act like a 12 mm.
On your tele lens this only will slightly shorten the 55 mm, but even 50 % of 55 is 27 mm and can't be seen as a fish eye.
I think when you put this on a short lens, the picture you get will be round, like you were using a real fish eye.

Feb 28, 2012 | Nikon Cameras

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Are older Sigma Quantaray lenses that I used with a 35 mm SLR Canon Rebel 2000EOS compatible with new DSLR Canon bodies?


Yes. Bear in mind that many Canon digital SLRs have a sensor smaller than a frame of 35mm film. This results in the image being cropped, narrowing the field of view and making the lens behave as if it was of a longer focal length.

Sep 02, 2011 | Sigma AF 70-300mm f/4.0-5.6 DL Macro Super...

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I HAVE A CANON EOS REBEL T2 35MM FILM CAMERA AND AM PURCHASING A CANON TI1. CAN I USE THE SAME LENS ON BOTH CAMERAS?


Yes, you should be able to use them. Be aware, moving to digital there is a 1.6 crop factor. The means your 100 mm lens will have the field of view (FOV) of a 160 mm. No, it does not mean it is a 160 mm it is the fFOV is the same as a 160 mm. Also, at the other end is were you will most want to purchase a wide angle lens.
Example: your 28 mm film lens now has the FOV of 44.8, not wide angle. As you can see wide angle is where the move to digital crop sensor cameras lose out. To get back to wide angel you would need a 17 mm lens, that would give you 27.2 mm FOV.
To figure FOV take the lens multiply it by the crop factor. On a Canon it is 1.6, on a Nikon it is 1.5, the 4/3 sensor is 2.0.

Nov 01, 2010 | Canon EOS Rebel 2000 with 28-80 lens 35mm...

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Film gets rewound in camera


The APS photo system had a very complicated film transport mechanism, and as a result it's prone to this kind of failure. it's exactly why there are so few APS cameras left which still work.

Sadly, this is not realistically fixable: there are no parts available and diagnosing the precise cause is usually very tricky.

Your only "fix" is to throw the camera away and to replace it; at least you can usually pick up APS cameras for free but given that you can get far better 35mm compact cameras (and SLR's) for free as well, I'd personally choose those instead. 35mm film cameras are also far more likely to still work, the film is easily available and both film and processing are much cheaper. Image quality is superior too.

Search on your local FreeCycle groups, if you're in the UK you can additionally look on Freegle.

Sorry to disappoint you and for the fact that you had to wait so long for an answer.


Dec 19, 2009 | Canon Prima Super 105X - Point & Shoot /...

2 Answers

Can lens assemblies normally used with Pentax 35 MM cameras be used with Pentax digital cameras? My 35 MM camera is a Program Plus.


not realy,,, the digital camera is tottely difrent
anyhow they would all be supper long lenses,,,

Oct 14, 2009 | Cameras

1 Answer

Autofocus gives erratic results


Are you using this indoors, in low light perhaps? This would be the most common reason for this happening. The only way to get around that is to use a "faster" lens, such as f2.8 / f1.8 / f1.4 etc.

If not, try cleaning the lens and camea contacts with a plastic eraser, make sure no debris falls in the camera body (hold upside down for this).

Jun 02, 2009 | Canon EOS Digital Rebel XTI Digital Camera

1 Answer

Need to find lense


I think the most prudent solution is to give up on the idea. What do you need that for? This lens already has a huge range of 28 .. 300 mm in film equivalents, and it is marginally useful at 300 mm. Whatever else you put on it will make it worse (less light, poor focus and aberrations). Similarly, at the wide end, while it is technically possible to add a wide-angle element to shorten the focal distance to about 20 mm, that will also result in a loss of light and poor peripheral focus, so you will be much better off taking 2-3 pictures and blending them whenever you need a wider angle. This lens is a miracle of optimization -- it already has the attachments you are contemplating, plus macro and super-macro. I don't think its range can be expanded any further without an unacceptable degradation of quality.

Jul 03, 2008 | Fuji FinePix S9500 Zoom Digital Camera

1 Answer

I'm looking at buying a Canon EOS 400d and wonder if anyont can confirm whether my lens from old Canon EOS 620 film camera body will be compatible. (Unfortunately lens in storage at moment so I can't...


The canon lens should work fine. Some of the Sigma lenses have to be converted by Sigma to work with digital. The last one I sent to them they only charged me $10 for return shipping. You can find their address online.

Jun 10, 2008 | Canon Cameras

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