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10

Having recently gone through this exercise first-hand, I'll share my results. I bought a Helios 44-2 58mm F/2.0 (M42 mount) on eBay for very cheap. To use the lens with my Nikon D7000 body, I bought a Fotodiox Lens Mount Adapter which includes a removable infinity focus correction lens. Shooting with the infinity focus corrective lens, I was very ...


10

In addition to filter diameter, you need to specify the thread pitch, the linear (axial) distance the filter, screw, etc. travels for one (or more) full rotations of the thread. For SAE (or SAE-derived) threads, the pitch is usually specified in number of threads per inch. For example, the 1/4"–20 tripod mount and screw have a 20 thread-per-inch (TPI) pitch. ...


9

In short, because there is no room to do that, without prohibitive cost in additional optical elements. The lens and body are designed to provide the correct distance between the optical elements and the sensor. On a Nikon, that distance is on the order of 45mm (from memory, it can be looked up somewhere or measured on cameras with a reference mark on the ...


8

The Nikon TC-16A did just that. You could mount a fully manual lens, and it would basically convert it to AF, but as RBerteig says at a considerable cost and loss of a full stop. For that reason it was meant to work with f/2.8 or faster lenses. You would also lose some focus range. And being a teleconverter, you obviously have a 1.6x focal length ...


7

Those lenses sound like auxiliary "converter" lenses, which are generally intended to thread onto the filter threads of another lens to convert that lens to a longer or wider focal length. They're more common for advanced point-and-shoot cameras than SLRs and won't do anything useful without a lens to mount them onto. In my experience, these converter ...


7

No. There are several problems here. This lens looks a lot like the Senko 50mm f/0.95, i.e., it is a C-mount lens for 1" format video. This lens vignettes even on micro four-thirds (2x crop). There's no way the image circle will cover an APS-C or full-frame camera, and the registration distance is much much smaller than that of Nikon F. In order to get the ...


6

EDIT: Regarding your edit. That is NOT HDMI output. What you are looking at is tethered shooting. It is available directly for Android here. For now on iOS, you need an intermediate computer to do the relay and this app. ORIGINAL ANSWER: If that DSLR is the Canon EOS 6D, you just need the Canon App (iOS and Android) and will be connected wirelessly. You ...


6

If the image in the viewfinder was dark, I would say you are probably not opening the aperture. However, as you mention it is cloudy grey, I think it is more likely that you are simply not getting close enough to your subject. You need to get within a couple of centimetres of your subject to form an image when using a reversed lens. As Unapiedra said in the ...


6

Adaptors to reduce the filter thread of a lens are a bad idea. They cause vignetting (dark areas in the corners). You might get away with a reduction of 2mm as different brands standardise on different sizes. Some kit lenses have bigger threads than they need so that the manufacturer needs to support fewer standard sizes. Apart from these 2 cases your not ...


6

The primary advantage of the former is that it avoids necessitating the purchase of a CF-USB adapter to upload photos to my computer (and from thence to my hardrive). If this is your main reason then it is not worth it. I have a 40D, and bought an adaptor and a 16GB SD card. So far it all works fine, however removing the SD card from the adaptor is ...


6

Micro SD to SD adaptors are just passive wiring adaptors. So they should not have any impact on speed.


5

To get a smaller threaded lens to work with a 58mm adaptor just requires the appropriate stepping ring. You can get an entire set of these for not much money, or you can measure the lens to find out exactly which size you need (my money would be on the value stated on the lens itself to be the correct one): http://www.amazon.co.uk/Fotodiox-Anodized-49-52mm-...


5

The Chinon CM-5 uses a Pentax K mount and there are adapters available for about $15 to mount these lenses on your Canon 1100D. Mike Butkus Camera Manual Library Fotodiox Adapter


4

The 30D remote shutter release is very simple - all you have to do to activate the shutter is short two pins - no arduino needed. All you need is to take a microswitch (I used the reset button from an old computer for my DIY shutter release) and connect it the old shutter release cable so that the old cable presses the microswitch (sounds like a job for ...


4

Metabones makes an EF-to-E adapter that brings all of the electronic features across except autofocus and some of the lens correction information. A full-featured adapter could happen, but you could lose out on an awful lot of shooting waiting for it. Selecting lenses with an eye toward the future is a good idea, but the adapter's US$400 price tag makes ...


4

No. The L830 does not have a filter thread, and no accessory tube with which to attach a filter to the front of the lens. Any fixed-lens P&S cannot swap lenses, but can only really take a filter in front of the lens. You can add filters that can add macro close-up capability, or act as teleconverters to increase or decrease the focal length of the lens, ...


4

The ratio f/2.8 means the diameter of the entrance pupil is equal to the focal length divided by 2.8. The key thing to note about the above is that the entrance pupil is the image of the aperture stop as seen through the front of the lens, the ratio does not depend on the physical size of the aperture itself. A rear-mounted 2x teleconverter, such as you ...


4

Consider Sony A-mount Your Tamron lens is Minolta AF mount. This is, in fact, the same lens mount that Sony's A-mount SLT cameras use, so if it's absolutely imperative that you use this lens, Sony's A-mount cameras would not require an adapter and would give the highest level of compatibility (including autofocus). However, to most of us, a third-party ...


4

Firstly check that in the AMD panel you can configure which graphic card is used when Lightroom is started. Perhaps disable one of the graphic cards before starting Lightroom. Moreover, a good solution is to completely uninstall the drivers, clean them, then reboot and install the drivers again. This is just to be sure you have a "clean install" of the ...


4

No, because the register (distance from the mounting flange of the lens to the sensor plane) is quite short.


4

It is a "non-CPU lens". The camera must be in camera Manual mode M. Exposure settings are manual. The scope is of course manual focus. See D5300 REFERENCE manual, page 228. The REFERENCE manual is available at http://downloadcenter.nikonimglib.com/en/products/25/D5300.html


4

Most Soligor mirror lenses have a T2 mount. To use one with your Canon EOS 5D (or any other Canon EOS camera) you need a T2 to EF adapter. Realize that you will need to manually focus and shoot in manual exposure mode with such a lens. Also note that there are three tiny set screws that must be tightened after you attach your lens to the adapter to prevent ...


4

No, there is no such adapter. The Rokinon lens a manual-focus, manual-aperture lens. It does not have a built-in focus motor, nor can it interface with a focus motor in a camera body that might have one (the Sony a7 does not).


3

It sounds like they're actually adaptors/filters for lenses, rather than lenses in their own right. The 52mm thread can be screwed onto the front of a variety of lenses, like the standard 18-55mm kit lens. The 2x telephoto adaptor will make the lens "longer", or more telephoto (it will magnify objects more), while the 0.45x wide angle adaptor will make ...


3

Unless you have some particular hang-up that it has to be your iPhone, the gadget you're looking for is called a field monitor. Many are available in a wide variety of price ranges, and most have HDMI inputs.


3

If the adapter is a glassless one and used only to adjust the lens to sensor plane distance then you may get little or no quality loss. Even without glass you can get effects due to different geometry. If the adaptor contains a lens or lenses to allow for an otherwise unattainable lens to sensor distance then some quality loss will occur. A $2000 adaptor ...


3

In manual mode I can not select the aperture but only shutter speed and exposure. That's correct. The M42 mount doesn't have any provisions for the lens to interact with the camera in either direction, so shutter speed and sensor sensitivity (ISO) are the only things on the body you'll be able to adjust. Aperture is, obviously, on the lens. The images ...


3

Nikon DSLRs do not play well with M42 lenses, as flange focal distance (46.5 mm) of Nikon F-mount is longer than on the original M42 cameras (45.46 mm). The lens was designed to sit closer to imaging plane (film) than it can physically reach on your DSLR's body, and this robs the possibility of focusing anywhere near infinity; the lens can be focused only in ...


3

Pentax doesn't, because Pentax doesn't make any adaptors for other people's lenses. However, assuming this is an old Olympus OM lens, you can get a third-party adaptor — for example, this $40 one from FotodioX. Note that the flange focal distance of the K mount is 45.46mm, while that of the Olympus OM mount is 46mm. In order for an adapter to be a simple, ...


3

For the most part, aside from the added instability and possible added variance in adapter thickness when stacking adapters, you're correct, but there are exceptions. Not all the Samyang lenses for mft are identical to their dSLR counterparts. Samyang does make two lenses that were specifically designed for mirrorless mounts and do not work on dSLRs, and ...


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