Spring 2012

Spring 2012
by ani

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29

You're probably better off with native-mount lenses For the most part, no, you can't mix'n'match lenses from different brands of cameras, because they'll usually use different mount systems. The mount system specifies how the lens and camera body physically link, and may also specify electronic communication between the lens and camera. If the lens and ...


26

Yes, all Pentax DSLRs accept all K-mount lenses. This includes autofocusing (if applicable), focus confirmation, metering, IS, etc. The oldest two series, K and M series (database), do not have aperture contacts, and thus do not work with Av and Tv mode. Instead, you'll have to use M mode, but you will get meter readings. It can also suggest a shutter ...


18

The short answer is: save it as a TIFF. PSD may once have been considered the more "native"/modern Photoshop format, but no longer. Jeff Schewe (the Photoshop Guru's Guru) advised way back in August 2007 on the Luminous Landscape forums that choosing TIFF over PSD was his strong recommendation. I quote: Look, I'll make it REAL simple... TIFF = ...


16

In talking with a number of working pros, the general attitude tends to be that you buy lenses to keep and you buy bodies to upgrade. My personal planning mirrors this; I've tried to invest in higher quality lenses that i expect to own for a while (10-15 years) while given how body technology is changing, upgrading a body every 2-3 years doesn't surprise me. ...


16

I think this question boils down to a balance between backwards compatibility and technological progress. You can strive to maintain the ultimate in backwards compatibility, and never change a lens mount. Some camera manufacturers have succeeded in that, such as Nikon and Pentax, to a large degree. However, what is the long term cost of progress there? ...


15

This is a particularly thorny question with Nikon. On one hand, Nikon still uses the same basic mount as their very first SLRs did shortly after the second world war was over. On the other hand, over the years they've had to come up with quite a few variations on that mount. As a result, the exact degree of compatibility between a particular lens and camera ...


11

Yes, there are. Most DSLRs are backwards compatible with lenses of film DSLR from the same brand. The main exceptions are Olympus, Panasonic and Sony. Canon changed its mount completely when they introduced autofocus, so you will have less luck there. Nikon manual focus lenses are compatible with higher-end bodies (D90, D300S, D7000, D3S, D3X, etc). ...


8

Yes, there is no reason that these would not work, assuming that their filter diameter matches your lenses, of course. As with lenses in general, there have been improvements in design and manufacturing which may make newer filters nicer. For example better coatings are available, and older filters are less likely to be multi-coated. You may also find newer ...


8

As Matt noted, there's no general reason that you can't use them if the diameters match up with your lens elements. The only thing I would note in addition to that is that you may run into linear polarizers which may not work correctly with your camera's metering and autofocus systems. That's not really an issue for focussing if you manually focus. For ...


7

Yes, if it is an old flash, it is possible that the trigger voltage is around 200V. However, according to some information from Chuck Westfall (Canon USA official), all bodies since the EOS 20D should withstand this voltages (I don't have the link, but you can search Google and it will pop up in one of the many forums). To be on the safe side, you can get ...


7

There is a great summary of K-mount features at Bojidar Dimitor's page. You should look for the "crippled" KAF2 body.


7

The Nikon SLR lenses are designed such that the image circle falls on the sensor/film plane based on the distance from the sensor to the mount (flange focal distance). For an SLR, this distance includes the space needed for the mirror. As the Nikon V1 doesn't have a mirror, the distance from the sensor to the mount point is substantially smaller, so in order ...


7

Is it a third-party lens or a Canon one? It is a well known fact that some older Sigma lenses in particular have problems with the electronic interface with newer Canon camera bodies.


7

I don't think my contacts need cleaning because the camera works fine with a 18-55mm lens. You could try cleaning the other side of the contact point, that being the contacts on the lens.


7

Unfortunately not, as this lens does not have a built-in AF motor, and neither do the D3X00 or D5X00 camera families from Nikon. Your camera will only have autofocus with Nikon lenses marked AF-S, or compatible lenses from other makers that include built-in focusing motors.


7

The most important thing you'll need to know is the "lens mount" that both your lenses and your body use - examples here are Canon EF, Nikon F and Micro Four Thirds. Once you've done that, you'll need to find the flange focal distance (FFD) for both the lens and the body - handwaving slightly, the flange focal distance is how far the lens needs to be from ...


6

Ignoring issues of mechanical wear on lenses (which is difficult to quantify) and focussing on changes of format etc. the real problem is with changes to the registration distance, the distance from the film/sensor to the lens mount. When Canon moved from the FD to EF mount the registration distance increased and this made the FD lenses incompatible, when ...


6

A good lens is a lasting investment that will outlive generations of camera bodies. But you should be aware of these general considerations when buying a lens. The greater the zoom range the lower the resolution, the greater the distortions and the smaller the maximum aperture. This is an unavoidable law of lenses. Thus a prime lens is capable of the ...


6

Yes it will work. Those cameras don't feature an in body focus motor and won't autofocus with any "AF" lens. Your D80 should be fine with any AF or newer AF-S lens.


5

Is your lens autofocus? If so, your new camera will need the autofocus drive - many of Nikon's newer, entry level dslr's don't have one. Most of my older lenses are MF (Manual Focus). I have a 30+ yr old MF Nikkor 135mm that works great on my D700. It's been "AI'd" which means someone cut a notch in the part of the lens's mounting ring so that the newer ...


5

In addition to the K-mount still used on most current Pentax DSLRs (except medium format, like 645D or 645Z), there were Pentax 645 and Pentax 67, both are medium formats. Those lenses are quite heavy and you'll need an expensive adapter for them. Before K-mount, Pentax used a screw-mount called M42; you'll need an adapter to use an M42 lens. There's a huge ...


5

TIFF is more widely supported. Many programs don't deal with PSD because the format is very complicated. TIFF on the other hand is like a "standard" image format along with JPEG and PNG. Both TIFF and PSD can preserver layers information. Both of them can handle 16 and 32 bit image. However PSD can contain much more than that. Since it is the native ...


5

It depends. The Canon flashes you listed in your question use pulsed light from the Master unit to tell the Slave units when to fire and how much power to emit. This allows proprietary communication between the Master and Slave units and allows for use of Canon's E-TTL automatic exposure system as well as permits the photographer to set manual power levels ...


5

To cut a long story short, you are using too fast a shutter speed. The shutter consists of two black 'curtains' that travel down over the sensor, one after the other, allowing exposure of the shot. Both these curtains have to be out of the way when the flash fires, otherwise they will block part of the sensor and you get a black bar in your shot. Using a ...


5

Since Canon introduced the EOS system in 1987, all EOS EF mount lenses will work on all EOS EF (full frame, APS-H) or EF-S (APS-C) mount bodies. This means they will be functional in terms of automatic metering and auto focus. What field of view each lens will yield on a digital body depends on the size of that camera's sensor. For a closer look at that ...


4

The lenses will fit but will not autofocus as the D3100 does not have an in-camera focus motor and requires AF-S lenses for auto focus. If you wish to use AF with your lenses, then you should consider the D7000 or a model with 1 to 3 numbers in its name (D300S, D700, D90, D3S, etc). Note that the angle-of-view of your lenses will be different if you do not ...


4

The Pentax dSLR line supports the entire K-mount lens line up through its history. In addition, with adapters, you can easily use old screw mount (M42 or commonly called the "Pentax" mount) lenses or even Pentax medium format lenses, many of which were top notch. In any event, to use manual lenses with the new Pentax cameras, you just enable use of aperture ...


4

No. The six SLR mounts that you can easily adapt to Canon EOS with simple ring adapters are Leica-R, Nikon F, Contax/Yashica, Pentax K, M42, and Olympus OM. But Minolta AF lenses work just fine on Sony Alpha (A-mount) dSLRs and dSLTs without any adapters. And you can, of course, adapt these to mount on the Sony E-mount (NEX). But not for Canon EOS. When ...


4

What matteres is not the manufacturer of a lens, but its lens mount. In fact, there are two things that have to be considered. First and most important aspect is probably the flange focal distance. This is the distance from the mounting flange (the metal ring on the camera and the rear of the lens) to the film plane. In order to achieve infinit focus, this ...



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