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Steven, Paul and Mark, I just posted this in order to show the extent of the involvement of Charles Parsons in the optical side of things, not to measure its quality. I think that the way this is...

The wheel aperture is not that common on Grubb lenses. We have examples of lenses where Howard added a diaphragm such as my aluminium lens No 5350, the highest number on a Grubb lens found to date,...

Spotted today by a friend of mine in Birr Castle, home of the Parsons family which had connections with the Grubbs and the Great Telescope, built with the assistance of Thomas Grubb, was this Howard...

Paul, the stops are very interesting and it is the first time I have seen anything like them. You should post a picture here when you get a chance. I only have one Grubb Waterhouse stop, on an...

My view is that this was a factory test lens donated by Howard to the PSI sometime after he had been President in 1888/89. It used an earlier lens element with later features similar to those of 5350...

Mark, various locations were mentioned in the auction lot, but were not matched with the photos. I will send you the complete set of auctioneer's images and also the list of names given by the...

My latest discovery, a lovely Howard Grubb Aplanatic No 4009 for 10x8 plates from the 1880s. It has a diaphragm with the range f16-f64, although it does go wider to perhaps f12 or f14 at the wide...

Two more by Bedford from c1870, as you like them so much. Can you identify the building beside the mound or just the location?

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William

Thanks, Mark. I really love them. He was a great photographer and whatever lens he was using was not bad either. I have passed through this area many times after travelling from Dublin to Holyhead...

This might belong properly in a stereo thread, but as it relates to a paper delivered by Howard Grubb in January 1879 to the Royal Dublin Society (RDS) very shortly after his father Thomas had passed...

I mentioned my recent acquisition of photographs of North Wales (Portmadog, Anglesey,Snowdon etc) taken by Francis Bedford c 1870. In the mid 1860s Thomas Grubb was advertising the use of his lenses...

I mentioned that I would check my Grubb/Watson Aplanatic Doublet No 5045 and my Aluminium Aplanatic No 5350, the highest Grubb lens Number I have seen, for engraved 'rice writing' on the glass in the...

My latest Grubb lens, an A3 Petzval Type No 1268.

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William

We have quite a few advertisements by Grubb. Any that are marked 141 Leinster Road are after 1863/4 when he moved there from Leinster Square. I have brought Paul (pgk) to these addresses. I have seen...

The size of the image is max 5x5 inches , but the screen is ruled for 3 1/2 x 4 and 21/4 x3 inches. This is not uncommon with 19th Century cameras and a lot of the cameras I have catalogued recently...

I have No 2591, seen on the left here. No 3631, the Ax on the right is in Ivan's book. The Lens in the middle is my lovely 509 with a helicoid.

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Ivan, your paper negatives produced with a...

The piece re Dallmeyer I quoted from was clearly written by a British correspondent who visited Dublin for the Exhibition. There was also a report by Sir John Joscelyn Coghill, the Head of the...

The lens which I showed at the event last week was an 1880s Aplanatic Doublet by Howard Grubb with Watson markings. I brought that to the event because of the owner of the darkroom seems to have been...

Thanks, Ivan. It is not surprising that many designers were trying the same thing at around the same time. Last year at our Leica Society International Conference in Dublin, which I chaired, Peter...

According to your book, 25 was f15.81 and 50 was f22.36, so what was scratched here looks right. The 1890 catalogue shows a No 1 size with 4 1/4 x 3 1/4 for landscape and 3 1/4 x 3 1/4 for group or...

Thanks Ivan

I wont say anything more about the unauthorised use of one of my photos in the book, as, despite its imperfections, I actually find the book quite useful and I consult it a lot. If I...

I am doing a large ongoing job, cataloguing and describing the camera and lens collection of the Photographic Society of Ireland, which was founded as the Dublin Photographic Society (PSI) in 1854....

My latest Grubb lens, a Petzval type A2 CDV and Portrait lens, has arrived. It is No 2558. I suspect it may be from the late 1860s. It is generally in good condition, apart from having a bent pinion...

Sutton's main claim to fame was as the taker of the world's first colour photograph, working with James Clerk Maxwell. He had an eye to the lens market and worked with Ross on the 1858 Sutton...

Very nice, Paul. This looks very similar to my aluminium Grubb lens No 5350 which has a diaphragm (starting with the RPS scale No f11.3) and orange coated glass elements. Because of the last...

Paul, I believe we have found that many Grubb lenses are effectively bespoke. Have you two that are exactly the same as regards both designation and dimensions? None of mine are the same despite...

Paul and I have some of the entries in that ledger. For example, I have the one for 3631, which is in my collection, so I know the exact date that it was finished in 1875. It looks like the lenses...

So he will quote my name, but won't reply to my offers? This is right up there with the guys who produced the recently published brass lens book (which I bought) which contains a photo I took,...

Is this the one which quoted myself (by name) in the listing? I made an offer to the guy after it did not sell, but the seller never came back to me which was ironic. I've been too busy to go after...

Congrats Paul! A very nice sample indeed.

Not long ago nr. 3500 - a landscape lens - was sold:...

As regards what Watkins had, Tyler Green in 'Making the West American' mentions a 'cutting edge' Grubb C lens. I do, however, remember some mention of a Globe lens in connection with Watkins, but I...

I agree with everything that Paul (pgk) has said. An F or a G Grubb lens would have given the coverage necessary with focal lengths of 25" and 30 " respectively. The books about Watkins refer to a C...

I suppose we should stay quiet on the British/Irish thing as things are boiling up again in Northern Ireland, post Brexit. Thomas and Howard Grubb were both Irish and both were born and died in...

I agree generally with Steven's review, apart from his dismissal of Grubb's contribution, of course. I may see everything through 'Irish eyes', but I would not have bought the book without Grubb's...

My latest Grubb lens is an Aplanatic 12x10 No 5350, made by Howard Grubb in aluminium, and dating, I believe, from the 1890s. It has a diaphragm aperture control with the RPS scale f11.3 which was...

That is, of course, correct, Paul. The point I was trying to make is that Grubb lenses were not in my experience, I have 7 of them, made in standardised sizes. So, any fittings such as stops or...

Is 1560 a Petzval and does it have a Waterhouse stop slot? The only Grubb lens that I have with a Waterhouse stop slot and an actual original stop is an Aplanatic Doublet from the 1880s. 1560 is much...

If you want to use a Leitz Elmar with a 4x5 camera look out for the 10.5 cm Elmar with Compur shutter which was designed for the Nagel Recomar. It gives 4x5 coverage on my Intrepid, see photo below....

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This is an example of an engraving on Grubb Patent 2215 Patent Doublet from pgk's collection. He was unable to upload it himself. It is also shown here in a piece about my collection and...

Thanks Paul

My collection is as follows, Front Row from left to right 482 C Aplanatic, 582 C Aplanatic, 3631 Ax Aplanatic. Back Row from left to right 509 Aplanatic (slightly smaller than C) with...