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my-spot View Drop Down
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Post Options Post Options   Quote my-spot Quote  Post ReplyReply Direct Link To This Post Posted: 02 December 2007 at 01:32
The "MF" abd "MC" on these are fairly good signs that they are manual focus and likely "chip-less". I think it is fair to update the list for the chipless lenses with a lens ID of 65535 because that is likely what they would report as within a raw file...
 



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Post Options Post Options   Quote H_K_F Quote  Post ReplyReply Direct Link To This Post Posted: 10 December 2007 at 18:59
HotDuck had uploaded a few pics for Voigtländer SL Macro Apo Lanthar 125 2.5 in the Forum Home > Equipment forums > Lens talk area > Sample images.
Voigtländer SL Macro Apo Lanthar 125 2.5

EXIF reads 130mm in CS3.

Any other images you may need, please send me a PM. I would love to help. : )


Dynax 7,9,A2,5D
Sony A700,A900,A99
17-35G, 24-70Z, 28-70G, 70-200G, 35G, 50D, 85G, 100D, 300/2.8G, 600G
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10-18, 16, 18-200, 24-70Z, 35/2.8Z, 55/1.8Z, 85/1.8Z, 70-200/4
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matthiaspaul View Drop Down
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Post Options Post Options   Quote matthiaspaul Quote  Post ReplyReply Direct Link To This Post Posted: 10 December 2007 at 19:38
Originally posted by my-spot my-spot wrote:

Originally posted by my-spot my-spot wrote:


255          ???     Unpublished Lens

I do not know what LensID 255 is...


I seem to have found references to two lenses with a 255 LensID...
Tamron SP AF 17-50mm F2.8 XR Di II LD Aspherical
Tamron AF 55-200mm F4-5.6 Di II

It would be great if somebody could double check the LensIDs if they have one of these lenses. Lenses with such differing specs usually do not have the same ID.

Regarding lens ID 255, I could find the following two references at "our place":

http://www.mi-fo.de/forum/index.php?showtopic=14914&view=findpost&p=213925
http://www.mi-fo.de/forum/index.php?showtopic=18627&view=findpost&p=213917

Both are pointing back at Dyxum as the source of information: ;-)

http://www.dyxum.com/dforum/forum_posts.asp?TID=21214&PID=210652

Hope it helps to track it down,

Matthias

Edited by Kiklop - 13 March 2008 at 12:40
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matthiaspaul View Drop Down
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Post Options Post Options   Quote matthiaspaul Quote  Post ReplyReply Direct Link To This Post Posted: 10 December 2007 at 20:06
Originally posted by Turerkan Turerkan wrote:

260     Arax     MC 35mm F2.8 Tilt and Shift
this one has no contacts too

Strange thing, this lens definitely does not contain a ROM. (I know for sure, as I own one of them, actually the B.I.G. (Brenner Import) labelled variant of it.)

Is 260, perhaps, an ID coming from one of those new "electricified" mount adapters (Haoda et al.)? In this case, the ID should better be listed under the entry of the mount adapter, not a random ROM-less lens...

EDIT: Silly me, 260 is the Dyxum ID, not the lens ID... #-> Maybe, in order not to confuse these numbers, we should prefix the IDs, say, DID and LID?


291     Voigtlander     MF 125mm F2.5 SL Macro APO Lanthar
it 'might' lack a chip.. H_K_F has one, only if he reads this!

I own one of them as well. It is MF-only, but it has fully automatic aperture control and even supports electronic focus confirmation in the view finder. It has 5 lens contacts. The ROM contents is officially licensed: "(c) 1994 Minolta".

The correct spelling of the name is:

Voigtländer Macro Apo-Lanthar 125mm F2.5 SL

ä = a-umlaut = & auml ; (EDIT: without the spaces of course - apparently, you have HTML enabled on your board)

The A-mount variant has the article code "ME: 19575" and the EAN/JAN code "4-530076-230989". It is manufactured by Cosina, Japan. The Voigtländer label, however, is a property of the German distributor RINGFOTO GmbH & Co. ALFO Marketing KG.:

http://www.voigtlaender.de/cms/voigtlaender/voigtlaender_cms.nsf/id/pa_historie_d.html

Unfortunately, I do not own a DSLR (still waiting for FF ;-), so I cannot provide any digital photos shot with this lens in order to read out the lens ID. With some luck, I may get around to put together the circuitry to directly read out the ROM data from the lens over Christmas, but I cannot promise it...

Greetings,

Matthias


Edited by matthiaspaul - 17 December 2007 at 02:30
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matthiaspaul View Drop Down
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Post Options Post Options   Quote matthiaspaul Quote  Post ReplyReply Direct Link To This Post Posted: 11 December 2007 at 04:54
I just tried to add some info in the Dyxum database regarding the Minolta AF Apo Tele Zoom 4,5-6,7/100-400mm, however, the software truncated the entry after my submission downto ca. 280 chars without giving me an error message. Hence, I would like to suggest to increase the allowed size of the entry somewhat and to add a proper error message when exceeding limits.

Anyway, in regard to the above mentioned lens, we were wondering, what might have been the reason of having two lens IDs (14 and 26441/2644), when there is only one known variant of this lens. I still cannot answer this, but it happens that we spotted and discussed a strange variant of this particular lens some while back in this thread:

http://www.minolta-forum.de/forum/index.php?showtopic=16770

Someone in our forum obtained a used lens from the UK (pre-ownership was not trackable beyond the immediate contact). This lens looks perfectly "normal", except for the fact that it sports a built-in bayonet-style tripod mount near the lens mount (or at least, that's what we think, it is). The finish of the metal mount is reported to look professionally made, not in any way like a user modification. So far, we have not been able to spot a second sample of this lens variant, nor have we seen the actual tripod collar, which would attach to this mount.
The lens has two stickers with Asian glyphs on them, one of them is reported to look like a QC sticker (white color with red/blue inking, oval shape). The serial number was 11500XXX, which might give some indication). In contrast to the "normal" variant of the lens, this sample did not have a 2-D barcode. The lens was made in Japan. It has 5 contacts and therefore is not a (D)-type lens. The lens mount itself has an inscription saying "© 1995 MINOLTA", just as with the normal Minolta AF Apo Tele Zoom 4,5-6,7/100-400mm.

Unfortuntely, the owner of the item sold it off to someone else already. The lens ID of this particular lens is still unknown (but we are trying to track it down).

Greetings,

Matthias

Edited by matthiaspaul - 11 December 2007 at 17:43
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brettania View Drop Down
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Post Options Post Options   Quote brettania Quote  Post ReplyReply Direct Link To This Post Posted: 11 December 2007 at 05:35
Originally posted by matthiaspaul matthiaspaul wrote:

I just tried to add some info in the Dyxum database regarding the Minolta AF Apo Tele Zoom 4,5-6,7/100-400mm, however, the software truncated the entry after my submit downto ca. 280 chars without giving me an error message. Hence, I would like to suggest to increase the allowed size of the entry somewhat and to add a proper error message when exceeding limits.


Try writing the comments in Word then pasting them into the dialog box. This was done in the case of one of the newer lenses, a hyperzoom. I will try to find the ref.
 



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brettania View Drop Down
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Post Options Post Options   Quote brettania Quote  Post ReplyReply Direct Link To This Post Posted: 11 December 2007 at 05:42

Got it -- Carl Garrard (Rush2112) did just over 2000 words and 11150 characters in the comments part of his review of the Sony AF DT 18-250mm F3.5-6.3. I presume that is enough for you?

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Post Options Post Options   Quote albnok Quote  Post ReplyReply Direct Link To This Post Posted: 11 December 2007 at 05:47
I'm not sure if this is an accurate guess, but for lenses of variable aperture F3.5-5.6 they seem to hit F5.6 at around half the longest focal length.

Sony 18-70mm F3.5-5.6 DT - F5.6 at 35mm
Sony 16-105mm F3.5-5.6 DT - F5.6 at 55mm
Tamron 18-250mm F3.5-6.3 DT - F6.3 at 135mm

If this could be proven, we could create a new rule of thumb!
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matthiaspaul View Drop Down
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Post Options Post Options   Quote matthiaspaul Quote  Post ReplyReply Direct Link To This Post Posted: 11 December 2007 at 13:37
Originally posted by brettania brettania wrote:


I presume that is enough for you?

That would be more than enough, thanks... ;-) Although I don't use Word.

However, I think, my explanation wasn't clear. I didn't meant the lens review comment section, but the comment entries in the Dyxum lens ID list at

http://www.dyxum.com/dAdmin/lenses/MakerNoteList_Public.asp?stro=lens

Greetings,

Matthias
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kiklop View Drop Down
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Post Options Post Options   Quote kiklop Quote  Post ReplyReply Direct Link To This Post Posted: 11 December 2007 at 14:21
Originally posted by matthiaspaul matthiaspaul wrote:


However, I think, my explanation wasn't clear. I didn't meant the lens review comment section, but the comment entries in the Dyxum lens ID list at

http://www.dyxum.com/dAdmin/lenses/MakerNoteList_Public.asp?stro=lens


It was an error caused by some database limitation. Data has been written to the database but truncated when displayed. I hope i have resolved this issue, but i'm on to it so please let me know if i need to make further adjustements.

p.s.
thanks to all for participating here.
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matthiaspaul View Drop Down
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Post Options Post Options   Quote matthiaspaul Quote  Post ReplyReply Direct Link To This Post Posted: 11 December 2007 at 14:48
In regard to the Minolta AF Apo Tele Zoom 4,5-6,7/100-400mm with tripod mount:

Originally posted by matthiaspaul matthiaspaul wrote:

Anyway, in regard to the above mentioned lens, we were wondering, what might have been the reason of having two lens IDs (14 and 26441/2644), when there is only one known variant of this lens. I still cannot answer this, but it happens that we spotted and discussed a strange variant of this particular lens some while back in this thread:

http://www.minolta-forum.de/forum/index.php?showtopic=16770

[...]

Unfortuntely, the owner of the item sold it off to someone else already. The lens ID of this particular lens is still unknown (but we are trying to track it down).

Okay, I just got confirmation, that the lens ID of this particular variant was 14. (What we don't know yet is, if lenses without this mount would have a lens ID of 26441 or mixed IDs.)

Greetings,

Matthias
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Alain View Drop Down
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Post Options Post Options   Quote Alain Quote  Post ReplyReply Direct Link To This Post Posted: 11 August 2008 at 20:27
Hi

What's the current status?


Alain
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Post Options Post Options   Quote Dorset Mike Quote  Post ReplyReply Direct Link To This Post Posted: 17 November 2008 at 20:42
Originally posted by albnok albnok wrote:

I'm not sure if this is an accurate guess, but for lenses of variable aperture F3.5-5.6 they seem to hit F5.6 at around half the longest focal length.

Sony 18-70mm F3.5-5.6 DT - F5.6 at 35mm
Sony 16-105mm F3.5-5.6 DT - F5.6 at 55mm
Tamron 18-250mm F3.5-6.3 DT - F6.3 at 135mm

If this could be proven, we could create a new rule of thumb!


This doesn't hold for the Tamron 55-200/4-5.6 (and probably the Sony version thereof) it holds f4 to about 120, f4.5 to 140, f5 to 180 and f5.6 from 180-200; similarly the Tamron 70-300/4-5.6 holds f4 to 135, 4.5 to about 200, 5 to about 270 ish 5.6 from about 270-300, difficult to determine the actual FLs between 180 and 300 as there are no markings on the lens, 4.5 definitely goes beyond the 180 marking and 5.6 is very close to 300.

Cheers MIKE,



5D, A350: 50/1.7; 28-75/2.8;80-200/2.8 APO Kit; 500/8; Tam 17-50/2.8; 18-280; 70-300/4-5.6: 90/2.8; MC7 2X; Tokina 11-16/2.8: 80-400/4-5.6; Kenko 1.4X:
Min A200 bridge
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Post Options Post Options   Quote albnok Quote  Post ReplyReply Direct Link To This Post Posted: 17 November 2008 at 21:08
Dorset Mike, to determine the exact point, zoom the lens slowly until the aperture increases. Take a shot, then see what focal length is reported.
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