archive-com.com » COM » M » MFLENSES.COM

Total: 529

Choose link from "Titles, links and description words view":

Or switch to "Titles and links view".
  • How to clean aperture blades
    blades to see if they are not oxyded on their edges Then you have to polish the blades with polishing media then clean one more time with dry solvent and if your polishing give a too blank aspect you have to reblue the steel with a gun blueing chemistry I did the whole thing on a czj tessar s diaphragm only for pleasure s sake A near invisible oxydation of blades is sufficient to prevent the perfect slipping of blades on themselves I have a K mount Soligor in this condition If your lens suffers only of old dry grease on blades cleaning would be enough The old dry grease appears on elements and diaph blades after an undesired sun heat exposition The grease of helicoïd evaporate and condense on the nearest surface The light fix is to remove the optical groups and rinse the whole diaph mechanism with plastic non corrosive solvent dry fuel or gasoline is the best known under the names of essence C or essence F in France Avoid the use of trichlorethylen or aceton if you re not sure the lens contains no plastic parts Then you exercise the diaph mechanism until it dries I

    Original URL path: http://www.mflenses.com/how-to-clean-aperture-blades.html (2016-02-16)
    Open archived version from archive


  • Leica Summicron-R 50mm f2 Lens Review
    There is no optical difference between the second and third version of the lens the latter one being compatible only with the R reflex cameras thus not any more with Leicaflexes Lens Related resources ebay com ebay co uk ebay de google com forum Leica AG Forum Fact Sheet Vendor name Type Product year Leica Summicron R 1979 Focal Min mm Focal Max mm Focus Min cm 50 50 0 5 Aperture Max Aperture Min Barrel length mm 2 16 41 Elements In Group Diaphragm action Weight g 6 in 4 auto 290 Filter Size mm Push on diameter mm Angular field 55 66 47 Gallery Full size gallery User Comments This Summicron R 50 third version was ranked second in a poll between photojournalists who had to decide about the best 50mm reflex lens of all time the winner was the Zeiss Planar 1 4 50 in the Contax version This Summicron R 50 is a very useful lens that makes it possible for the amateur photographer to get a taste of Leica quality at an affordable price The performance wide open suffers a slightly bit from vignetting but already at f 2 8 it reaches top quality that

    Original URL path: http://www.mflenses.com/leica-summicron-r-50mm-f2-lens-review.html (2016-02-16)
    Open archived version from archive

  • Camera Service
    Comments 5 Reply Tamron 18 270mm Zoom Ring broken 5 Wednesday 05 September 2012 12 08 Hi I would like to stop in and have my Tamron 18 270mm Nikon F Mount lens repaired The zoom ring is broken Where is your repair shop located in Budapest Cheers Reply Repair of Canon T90 4 Tuesday 28 August 2012 12 17 Hi I have a couple of T90s that doesn t take a shot and just blinks when the shutter bottom is pressed and also also a couple of Zeiss lenses that need cleaning Could you please advise Thanks and regards Alexander Reply Pancolar 1 8 80 frontlencse szorítógyűrű cseréje 3 Friday 15 June 2012 14 37 Tisztelt Attila Rekeszlamellák takarítása során a frontlencsét úgy csvarta ki a kolozsvári szaki hogy árkot vésett a gyűrű peremébe Tud e valakit akinek van ilyen hibátlan frontlencsegyűrűje és megválna tőle A gyűrűn Pancolar auto 1 8 80 MC Carl Zeiss Jena DDR Szűrőátmérő 58 mm sorszám 1788 5000 Ft ot fizetnék a cseréért Üdvözlettel Kabay László Kolozsvár piporsky gmail com Reply Takumar repair 2 Sunday 19 February 2012 14 21 Repair quote is sent to given email address Reply Reassembling a macro Takumar 100

    Original URL path: http://www.mflenses.com/camera-service.html (2016-02-16)
    Open archived version from archive

  • Tamron SP 300mm f/5.6 54B Lens Review
    Adaptall 2 on the other hand is a superb fixed focal length lens with excellent macro capabilities Lens continuously focuses from infinity to 1 3 3 macro and features a built in lens hood Most importantly this lens features a special spherical aberration compensator group to remove the focus group s spherical aberration when close focusing This lens is worth the price if you need a lens for macro work and need considerable working distance from the subject for personal safety or other reasons No other long telephoto lens ever made performs better in macro mode It should have sold better in its day but few photographers understood or appreciated the benefit of the spherical aberration compensator group used within this lens for close focus work With that said about the SP 300 F 5 6 do note that several OEM manufacturers produce 180mm to 205mm macro lenses which offer slightly better macro performance But ask yourself are you willing to shell out several hundred dollars for a brand new OEM lens when you can buy a SP 300 F 5 6 on eBay for anywhere from 60 to 120 Try the Tamron first If you don t like it and I think that you will since I love mine then you can always flip it on eBay by Michael Marcus Adaptall 2 com I have a Tamron SP 300 5 6 Model 54B and it is one of my favourite lenses It is relatively small very sharp and easy to focus despite its relatively slow maximum aperture I rate it as an excellent lens by Jim Colwell and much more better than popular today s lens SIGMA 70 300 APO DG After the first wonderful experience I bought one more piece to make sure if anything happen with lens

    Original URL path: http://www.mflenses.com/tamron-sp-300mm-f56-54b-lens-review.html (2016-02-16)
    Open archived version from archive

  • Carl Zeiss Biogon
    symmetrical lens designs distortion is extremely well controlled and so is color correction and image field flatness Combined with extreme precise manufacturing these properties make for an outstanding wide angle optic with high resolution an excellent documentation tool Biogon T 2 8 21 lens for the Contax G System Biogon T 4 5 38 lens for the Hasselblad SWC Superwide Camera This is exactly what is needed in aerial mapping photography a field where Carl Zeiss has played a leading even revolutionizing role worldwide for almost a century hence the expertise to design and manufacture such an outstanding high performance lens like the Biogon T 4 5 38 lens invented by Dr Ludwig Bertele at Carl Zeiss in 1953 Since the last vertex is located only 18 8 mm away from the film plane no viewfinder mirror can be placed between Biogon lens and film So Biogon lenses cannot be used with SLR type cameras On the other hand is the performance of the Biogon so outstanding that this lens is worth a precision camera body of its own The famous Hasselblad Superwide Camera SWC the state of the art wide angle device in medium format for almost 50 years

    Original URL path: http://www.mflenses.com/carl-zeiss-biogon.html (2016-02-16)
    Open archived version from archive

  • Nikon Nikkor 85mm f2 AIS Lens Review
    Focal Max mm Focus Min cm 85 85 85 Aperture Max Aperture Min Barrel length mm 2 22 60 Elements In Group Diaphragm action Weight g 5 in 5 auto 310 Filter Size mm Push on diameter mm Angular field 52 63 28 30 Quality Rate Rarity Rate DSLR compatible YES Gallery Full size gallery User Comments The replacement for the venerable f 1 8 lens was much smaller and very compact but unfortunately the optical quality is nowhere in the league of its predecessor In particular I found pictures taken with the 85 2 to be dull and life less and images took on a greyish cast as well I m aware of reports claiming this lens is an excellent perfomer and am at a loss to explain this discrepancy in opinions I ve tried several 85 2 s and they all behaved in a similar manner Bjørn Rørslett Tags nikon nikkor Comments 4 Reply One of those hidden gems 4 Sunday 30 September 2012 19 51 Bought one of these for 60 used and love the contrast and color on d700 d800 and the small size is an added bonus Bokeh is very pleasant as well Have the 85 1 8AFD as well but end up grabbing this one more often then not Reply Great everywhere but f 2 3 Monday 13 February 2012 07 54 Similar experience wonderful lens but there is a striking difference between f 2 and f 2 8 photos in terms of sharpness Far less sharp wide open and a much bigger difference than say a Nikkor 50mm wide open vs stopped down 1 Reply Nikkor 85mm F2 AIS 2 Tuesday 06 December 2011 18 02 I agree with almost all of Bjorn Rorslett s ratings of Nikkor lenses EXCEPT this one I

    Original URL path: http://www.mflenses.com/nikon-nikkor-85mm-f2-ais-lens-review.html (2016-02-16)
    Open archived version from archive

  • How to replace Praktica PLC,VLC batteries
    empty and moreless clean it has to be cut to the right size Three button 1 5 volt batteries add up 4 5 volt Next polishing the extremes and first fitting test I kept the screwed side of the marker to indicate the side Since the internal diameter of the marker was too wide for the batteries I added a filling cylinder of paper Also I cut a piece of

    Original URL path: http://www.mflenses.com/how-to-replace-praktica-plc-vlc-batteries.html (2016-02-16)
    Open archived version from archive

  • Super Wide Angle Lenses
    panoramic landscapes and shooting in cramped interiors The super wide angle amplifies the effect by intensifying perspective and providing greater depth of field The 28mm lens not long ago looked upon as the typical super wide angle is now considered almost a normal wide angle lens Today a super wide angle lens group usually ranges from 15mm to 25mm For practical applications the most popular focal lengths are about 20mm

    Original URL path: http://www.mflenses.com/super-wide-angle-lenses.html (2016-02-16)
    Open archived version from archive



  •