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brent_bennett

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Posts posted by brent_bennett

  1. <p>Operator Error; or old age eyes not doing too well.<br>

    I have discovered that the battery was very weak: Only the left vertical line of the battery outline was showing (I used a magnifier to see it). What is interesting is that the camera continued to operate normally with the very weak battery. Putting in a fully charged battery brought back the full battery outline and the interior marks to show a full battery.<br>

    Thank you all for responding; I have learned things from your comments.</p>

  2. <p>I have not used the Rebel XT very long. The screen used to show the condition of the battery, but somehow that has disappeared! I probably pushed a button or something to cause it. I looked in the manual and could not find a way to restore it. Any suggestions would be appreciated. Thank you for your response.</p>
  3. <p>I have just started to learn how to use this camera, and have not had previous experience with any digital camera. I have an adapter for some OM lenses I have, and I would like to know what others recommend for settings on the XT. Should I set it to M mode, or some other? I only want the camera to calculate the shutter speed after I have set the lens diaphram to my choice (f/5.6 for example) for the light that is available. Are there other settings that are recommended for this type of situation?<br>

    Also, if I use the on-camera flash (or an auxillary flash) will the camera calculate the correct exposure by setting the shutter speed?</p>

    <p>Thank You</p>

  4. <p>I have looked on-line at several reports on wide angle Zuiko lenses. There is general agreement that the 24mm f/2.8 is probably the best in terms of resolution, followed by the 28mm f/2 and f/3.5. The 35mm f/2 gets mixed revues.<br>

    I would like to know your opinions. I have noticed that many other manufacturers made lenses in this range for the Olympus OM. Are any of them as good as the Zuiko, or perhaps better?<br>

    Thank You for your responses</p>

     

  5. <p>I do not have a digital camera yet, but if I get one I want to use my Contarex lenses. None of the models (such as NEX and Olympus) appeal to me (adapters are made for Contarex lenses for them). The question is: If I get a Canon digital SLR body, are there particular models that have mounts that are not plastic, can be removed fairly easily, etc. A Rebel XT is available to me for modifying; is that as good a choice in that regard as any of the newer ones? This will be a machining job, and obviously I will be limited to using lenses without autofocus, so I need a camera body that will accomodate manual focus and f/stop/exposure settings.<br>

    FYI: the lens register on my lenses is 46mm, and the Canon body register is 44mm. Plus, of course, the body must be modified to accept the unusual Contarex lens mount.<br>

    Thank you for your suggestions.</p>

    <p> </p>

  6. <p>To all who responded on my question about sensor quality of Canon vs. Pentax, Sony and Nikon:<br>

    Thank you for your responses. I didn't expect to have so many make negative comments about DxOMark, especially when I didn't mention it by name. I think the best response from my point of view is the one from<br>

    Laurentiu. Those who bash the DxOMark testing have not, to my knowledge, suggested an alternative. Does anyone know of any other testing organization that attempts to make similar tests, but does so with more general approval? <br>

    I have never appreciated comments like "tack sharp". I am more analytical by nature, so the DxOMark service appeals to me. And I look at lens tests to make choices on lenses.<br>

    I am fully aware that there are many other feature issues that must be considered in making a decision on which camera to buy. I started with the sensor issue, because as a film photographer for several decades, it is the most obvious feature that I look at. I have never owned or used a digital camera! But I plan on buying one this year. I will be using it for pictures of people and some use in astrophotography. Perhaps eventually using it for landscape as well. Of course I should buy a full-frame or larger, but I don't wish to spend the required higher cost at this time.<br>

    I do landscape photography in prints as large as 24x36. With film cameras from 35mm to 4x5, I have never had to choose a camera based on sensor limits. So this is a new experience for me. It is from that perspective that I asked the question.<br>

    Maybe I should start with a cell phone camera! (just joking)<br>

    Again, thank you all for your thoughts. </p>

     

  7. <p>I have read several reports that the best APS-C sensor available at this time is the one being used in the Pentax K-5. Also from what I have read, the Sony A580 and the Nikon D7000 and D5100 use essentially the same sensor.<br>

    According to test reports I have seen, there is not currently a Canon APS-C camera that can match the IQ of the ones I have mentioned.<br>

    My question: Are there specific rumors that Canon will be using the sensor that these other manufacturers are using, or an equivelent match? And if so, when might such a model be reseased by Canon?<br>

    Thank You</p>

     

  8. <p>A friend who is a professional wedding and portrait photographer has an EOS 1D MarkII for sale (for $1000).<br>

    It looks brand new, so I am considering it even though it is only 8 mp; he takes very good care of his

    cameras.<br>

    I have heard that not all EOS lenses will work properly on this model. He has heard that only the L

    lenses will work on the 1D MarkII. Is that true?<br>

    Thank You</p>

  9. <p>Richard,<br>

    I live in the USA. I have recently noticed a machinist in Italy that advertises lens modifications that look very good. I would be willing to send it there, but his response was that he did not work on DSLR mods for Contarex lenses. Any suggested machinists would be appreciated.<br>

    Paul,<br>

    Thank you for the suggestion on removing the metal ring on the Alpha. Ideally, I would like to do that, and it's good to hear that it seems practical to you. Not too many people look at at option like this. Your "good fortune" in finding an Alpha with damage could really help in my quest for a solution. If at all possible, I would modify the camera to not only take the Contarex lenses, but have another adapter for Sony or some other mounts (Canon, Nikon, ?) Then I couild use my old Zeiss lenses or newer lenses too. I don't care about autofocus at all, but it is good to hear from you that the aperture priority and manual exposure will still work. Changing the f/stop from to wide open for focusing to a smaller opening for shooting will be somewhat of a pain, but that is ok with me if it allows me to use these lenses. Please keep me informed on your progress.<br>

    Thanks!!!</p>

  10. <p>Joseph,<br>

    Thank you for your suggestions. I should have explained that their are no adapters for the lenses I have (Contarex) for any of the cameras that I would like to get. The difference in register is only 2mm between the Contarex lenses and the Canon, and less than that for the Sony Alpha. Your suggestions are valuable to me however, regarding the screens and the metering in stop-down mode. </p>

  11. <p>I have several excellent Zeiss lenses that will not work on a Sony Alpha digital camera. The registration is too close. I would like to get the A580. Have any of you heard of modifying the lens mount (machining it down to reduce the distance to the focus plane)?. <br>

    Obviously, this would require an excellent machinist to not damage the camera. I wouild only be using older SLR lenses and therefore would not care about AF or automatic exposure. Would the camera still work ok, except for the things I have mentioned? <br>

    If you know of anyone who might modify a standard Alpha camera lens mount, please let me know.<br>

    PS No, I am not interested in the NEX-5. I want a good optical viewfinder, and other benefits of standard digital SLR cameras.<br>

    Thank You for your comments and suggestions</p>

    <p> </p>

  12. <p>I am looking at current possibilities for a high quality sensor digital that can use my Zeiss Contarex lenses.<br>

    With a 46mm registration, that really limits my options. I wish there was a full-frame digital camera that has<br>

    a significantly shorter registration so adapters could be made for my lenses.<br>

    At present, it appears that the Sony NEX cameras are a reasonable option. I would appreciate your advice in the context of the following thoughts:<br>

    1. The NEX is so incredibly small, especially compared to the big and heavy lenses that I would be putting on it. (I may have to machine a brick to hold it, so it feels more like a Contarex). A lighter and smaller camera is not something I would appreciate.<br>

    2. I live in a rather remote area, and there is not a store within 100 miles that has NEX cameras, so I haven't seen what it's like to not have a viewfinder. I would like to hear from someone who has one who has previouly had a viewfinder camera, either film or digital.<br>

    3. I am strongly prompted to get a digital camera that can take my lenses because of what I have read about the lack of quality of kit lenses. And I have seen that the better lenses cost more than I am planning on spending on the digital camera. I hope to not spend $2,000 on any lens at this point.<br>

    4. Another option would be to get a better camera, such as a Pentax K-5 (from what I've read, it is a very good camera) and machine the lens mount down to take my lenses (if that is feasable).<br>

    5. Finally, would an old SLR film camera guy, who sometimes uses a 4x5, be bothered with a camera that does not provide autofocus and automatic shutter speed and aperture settings? What is it like to use a manual lens on a modern digital camera?<br>

    Thank You for your comments</p>

    <p> </p>

  13. <p>As a film guy, I am in a different world now, thinking about getting a digital SLR. With film it is relatively easy to identify the best lenses from all the manufacturers. I realize that with digital, there are many factors such as noise that enter into the equation. <br>

    However, I would like to know how various lenses compare, and I would like to know of reliable testing sites that compare specific lenses from several manufacturers.<br>

    By best, I simply mean MTF, distortion, etc. Traditional lens testing attributes. <br>

    Please provide a link if you know of a good source for this information, and also your personal experience with them if possible.<br>

    Thank You</p>

     

  14. <p>I have an OM2n and I'm planning on getting a Varimagni. But I am curious about the new Asian-made viewfinders that are being sold on Ebay. Has anyone out there done a comparison of the original with the new copies? I am also planning on modifying another camera to take the devise too, but my main question about the OM is still valid. <br>

    I will appreciate your comments.<br>

    Thanks!</p>

     

  15. <p>I was told by a friend that the T1i and some other Canon cameras have a shorter lens registration than the standard Canon EOS cameras. I assume then that the EF-S lenses have a shorter backfocus or registration in order to focus properly on the T1i.<br>

    The registration for standard Canon EOS cameras is stated to be 44.00mm. What is the registration for the T1i ?<br>

    Note: I am asking because if the registration is less than 44.00mm, then several lenses (from other manufacturers) could be mounted on this camera with an appropriate adapter that would not work on a 44mm EOS camera.<br>

    Thank you for your response.</p>

  16. <p>I would like to know if anyone has experience with, or knowledge of, a machinist who can modify Canon EOS bodies to take non-Canon lenses. I would like to identify any one who has experience in lens mount body modifications for any type of lenses. My specific need is to mount Zeiss Contarex lenses on a Canon full-frame digital camera.<br>

    I am aware of the minimal distance between the two mounts, and the problem of the Contarex lens aperture ring being at the base of the lenses. My goal is to continue using my Contarex film cameras and also use a Canon digital camera that can use the same lenses.<br>

    Thank You</p>

  17. <p>Many months ago I read that a company is selling Ektar movie film in 36 exp. rolls for still pictures. They also process it, since the processing is different (can't take it to Costco!). I can't find my notes but I am curious following all the discussion about the two existing Ektars: Has anyone read of comparison tests with these two films?<br>

    Also, I would request that when people call Kodak, please ask that they make it available in 220 as well as 120. My camera will take either, and I would really like to get it in 220.</p>

     

  18. <p>Thank you all for your comments. Very helpful.<br>

    A few questions: Ilkka, you mentioned that the E3 has a much better viewfinder than the others. Can you quantify that statement some? And how about an E1 or E2 (I have not studied all the cameras that Olympus makes, so I'm not at all if there were such models)? It seems to me there was an E1. If so, is that viewfinder as good as the E3 in terms of seeing the images from manual lenses?<br>

    Ron, I had previously seen the Atkins article, but thank you. The problem is that I have not seen any commercially made adapters for Contarex lenses for any other make DSLR cameras. I may have to make my own, because I would assume that I would be better off with a larger sensor than the 4/3 cameras have. This is another issue, so comments on that question would certainly be appreciated.<br>

    Here is the link that got me started on this idea; you will probably find it interesting, especially if you have film SLR camera lenses that you would like to use with a DSLR:<br>

    <a href="http://www.contax-club.org/forum/viewtopic.php?t=10632&start=0&postdays=0&postorder=asc&highlight=&sid=b0afa34bbe1792a37924d0d8382d1c21">http://www.contax-club.org/forum/viewtopic.php?t=10632&start=0&postdays=0&postorder=asc&highlight=&sid=b0afa34bbe1792a37924d0d8382d1c21</a></p>

    <p> </p>

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