Old lens new camera - EF 35-70mm 1:3.5-4.5

Started Jul 18, 2012 | Discussions
Jcanberra
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Old lens new camera - EF 35-70mm 1:3.5-4.5
Jul 18, 2012

Can anyone tell me the problems I might have using an older Canon zoom lens EF 35-70mm 1:3.5-4.5 Part # 2002164 with a new EOS 60Da? The lens is at least 15 years old and was used with a Canon EOS630. Any advice is appreciated. Thanks.

Jcanberra

Canon EOS 60Da
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nelsonal
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Re: Old lens new camera - EF 35-70mm 1:3.5-4.5
In reply to Jcanberra, Jul 18, 2012

I've had good success with a 28-70 f/3.5-4.5 that's about the same vintage, it's even pretty close focusing. There are a few older 3rd party lenses that need rechipping/don't function anymore but that's about the only problems I know of.

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tkbslc
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Re: Old lens new camera - EF 35-70mm 1:3.5-4.5
In reply to Jcanberra, Jul 18, 2012

Non problems other than odd zoom range. 35-70 with the 1.6x crop factor = 52-112mm equivalent range. It's just going to be like a really short range telephoto so it may not be very useful.

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Steve Balcombe
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Re: Old lens new camera - EF 35-70mm 1:3.5-4.5
In reply to Jcanberra, Jul 18, 2012

Jcanberra wrote:

Can anyone tell me the problems I might have using an older Canon zoom lens EF 35-70mm 1:3.5-4.5 Part # 2002164 with a new EOS 60Da? The lens is at least 15 years old and was used with a Canon EOS630. Any advice is appreciated. Thanks.

It should work fine, there are no compatibility issues with any of those old lenses.

The model dates from 1987 by the way, and it was based on an even earlier manual focus lens. It was effectively replaced by the 28-70 f/3.5-4.5 later the same year though maybe they sold both for a while, I'm not sure.

The surprise is that you want to use it on a 60Da - a specialist astro photography body. What's the story behind that?

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Jcanberra
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Re: Old lens new camera - EF 35-70mm 1:3.5-4.5
In reply to Steve Balcombe, Jul 19, 2012

Steve,

I thought I would try some night sky photography and if my old lenses would work then that much of a bonus for other photo projects. thanks for the pointers

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itsDing
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Re: Old lens new camera - EF 35-70mm 1:3.5-4.5
In reply to Jcanberra, Jul 20, 2012

l got a Canon 28-70 f3.5-4.5 (45-112 crop cameras) on ebay for £25 buy it now a couple of months ago. l could not say no at that price. What a good lens it is, its on my crop camera most of the time now, Very sharp, good colour and contrast. There are some cracking older lenses about for very little money, not USM or IS but who needs that stuff.

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meland
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Re: Old lens new camera - EF 35-70mm 1:3.5-4.5
In reply to Jcanberra, Jul 20, 2012

Jcanberra wrote:

Can anyone tell me the problems I might have using an older Canon zoom lens EF 35-70mm 1:3.5-4.5 Part # 2002164 with a new EOS 60Da? The lens is at least 15 years old and was used with a Canon EOS630. Any advice is appreciated. Thanks.

Jcanberra

Nothing at all to stop you using it. However you may find it a bit low in contrast in certain situations - lenses for EOS film cameras didn't have so much of an problem of reflected light back from the surface of film. However sensors are very reflective and to combat this the rear lens group and light baffling on lenses for digital bodies are now designed to help suppress this reflected light.

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itsDing
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Re: Old lens new camera - EF 35-70mm 1:3.5-4.5
In reply to meland, Jul 20, 2012

Mine is not low in contrast, in fact sometimes l have to lower the contrast in post.

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itsDing
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Re: Old lens new camera - EF 35-70mm 1:3.5-4.5
In reply to itsDing, Jul 20, 2012

Taken with Canon 28-70 f3.5-4.5. The cat picture has had the contrast lowered by -20 in PS, the girl needs the contrast to be lowered. Who ever the author was saying older film lenses have low contrast was talking bullsh*t.

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meland
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Re: Old lens new camera - EF 35-70mm 1:3.5-4.5
In reply to itsDing, Jul 20, 2012

itsDing wrote:

Who ever the author was saying older film lenses have low contrast was talking bullsh*t.

I can't argue with your specific experience but tell me why do have to lower the tone by making comments like this?

In general lenses designed for film can have contrast and flare problems with digital sensors. But I'm please that you haven't experienced any issues.

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itsDing
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Re: Old lens new camera - EF 35-70mm 1:3.5-4.5
In reply to meland, Jul 20, 2012

Flare problems, Koff! l dont hear people moaning about flare problems with the 35 f2, 50 f1.8 mk1 and 2, 85 f1.8 etc, must be a few more lenses designed before digital that are used all the time. My original statement still stands.

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meland
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Re: Old lens new camera - EF 35-70mm 1:3.5-4.5
In reply to itsDing, Jul 20, 2012

itsDing wrote:

Flare problems, Koff! l dont hear people moaning about flare problems with the 35 f2, 50 f1.8 mk1 and 2, 85 f1.8 etc, must be a few more lenses designed before digital that are used all the time. My original statement still stands.

As you wish. If however you do have any further interest in this you might want to try a Google search on "Lens problems when using lenses designed for film on digital cameras" or something similar.

Alternatively you might be interested in what Canon themselves wrote on the subject. I take the liberty of quoting from Canon EF LensWork III , 9th Edition, page 154 / 155.

“The reflective characteristics of image sensors in a digital camera differ from those of film in that they possess a higher reflectivity as well as a characteristic known as regular or “mirror” reflection, which has the effect of creating flaring and ghosting inside the lens when light from a bright source enters the lens reflects back to the image sensor. In order to resolve this problem particular to digital cameras, a new approach to optical design has already been adopted............... To prevent this effect particular to digital photography, we have optimized the shape and coating of certain lenses...................... Specifically, each lens element has a different design, in order to reduce the repeated amount of repeated reflection inside the lens. Further, the lens surface, which has a large effect on reflectivity, is treated with a special multi-layer coating with high transmittance. This allows any light reflected on the image sensor to escape out of the lens in the direction of the subject, thus reducing flaring and ghosting.”

Now I'm not saying all Canon lenses suffer from this and sometimes the conditions have to be quite bad to provoke it, but just as an example I have an older EF 80-200 which is almost unusable on digital for any contra-jour subject because of severe flare, although on film it was absolutely fine.

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itsDing
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Re: Old lens new camera - EF 35-70mm 1:3.5-4.5
In reply to meland, Jul 20, 2012

Photographers get old film lenses (no flare or contrast problems). Zeiss, Nikon, Pentax, Canon,Minolta to name a few. Why??????

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Steve Balcombe
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Re: Old lens new camera - EF 35-70mm 1:3.5-4.5
In reply to itsDing, Jul 20, 2012

itsDing wrote:

Flare problems, Koff! l dont hear people moaning about flare problems with the 35 f2, 50 f1.8 mk1 and 2, 85 f1.8 etc, must be a few more lenses designed before digital that are used all the time. My original statement still stands.

Actually the 50/1.8 is notorious for internal reflections. The consensus is that it seems to be caused by reflection between the sensor and the back of the front element which is flat.

That's the MkII but there is no difference in the optics so it would apply to both versions.

I'm not aware of any similar problems with the 35/2 or the 85/1.8.

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meland
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Re: Old lens new camera - EF 35-70mm 1:3.5-4.5
In reply to itsDing, Jul 20, 2012

itsDing wrote:

Photographers get old film lenses (no flare or contrast problems). Zeiss, Nikon, Pentax, Canon,Minolta to name a few. Why??????

It's certainly not a problem unique to Canon and my guess is that certain lenses from other manufacturers can suffer from it too.

I wouldn't lose any sleep over it though, particularly if it hasn't caused you any problems.

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meland
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Re: Old lens new camera - EF 35-70mm 1:3.5-4.5
In reply to Steve Balcombe, Jul 20, 2012

Steve Balcombe wrote:

itsDing wrote:

Flare problems, Koff! l dont hear people moaning about flare problems with the 35 f2, 50 f1.8 mk1 and 2, 85 f1.8 etc, must be a few more lenses designed before digital that are used all the time. My original statement still stands.

Actually the 50/1.8 is notorious for internal reflections. The consensus is that it seems to be caused by reflection between the sensor and the back of the front element which is flat.

That's the MkII but there is no difference in the optics so it would apply to both versions.

I'm not aware of any similar problems with the 35/2 or the 85/1.8.

Agreed - both the 35/2.0 and 85/1.8 rear lens elements have greater curvature which may have something to do with that.

Anyway Canon quietly dropped or upgraded the worst offenders fairly early on.

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